Looks like it is kernel related (rather than NVidia driver).
My machine is running internal GPU (intel 620) only, and I am getting the GPU panics as well.

Driver: 20190822
Time: 1580203603 s 941455 us
Boottime: 5955 s 161091 us
Uptime: 14 s 9601 us
Epoch: 4300622016 jiffies (1000 HZ)
Capture: 4300622016 jiffies; 184551 ms ago, 0 ms after epoch
Reset count: 1
Suspend count: 0
Platform: KABYLAKE
Subplatform: 0x0
PCI ID: 0x5917
PCI Revision: 0x07
PCI Subsystem: 10cf:1959
7 days later

I also can attest that 5.4.x kernels are giving me unstable system. Intel video
kernel: i915 0000:00:02.0: GPU HANG: ecode 9:1:0x00000000, hang on rcs0
Mouse moves, picture is frozen, I can ssh in and reboot. Sometimes I can switch to other tty e.g. with ctrl+alt+f3, other times switching is very slow or not happening at all.
Noticed that electron-based(?)/gpu accelerated(?) software, like opera/chrome, spotify, vscode sometimes starts to flicker and becomes unusable.

Since I can choose to boot 5.3.x, I use it. So far it works without problems.

5.4.12 brought back my troubles as well while 5.4.8 worked nicely. Not sure if it's really the kernel itself or some incompatibility though. My knowledge of these things is very superficial.

The 5.5.1 kernel is coming soon and may have fixes if enough people reported this issue to the kernel developers.

7 days later

I had the same problem with kernel 5.4, 4.9 works nice but wifi/ethernet drivers are not working properly with it.

    Justin Yes, It happens although lockups are not random, It happens when the laptop is under heavy load.

        Justin I don't think I get out of memory nor hammering the CPU. If I run all those things(Godot development in VSCode, Discord in firefox and nautilus) at a time in 4.9, it only covers 4 GB(out of 8GB) ram and 40% of all cores.
        Here is inxi -F

        System:
  Host: host Kernel: 4.9.210-151.lts x86_64 bits: 64 Desktop: Budgie 10.5.1 
  Distro: Solus 4.1 
Machine:
  Type: Laptop System: Acer product: Aspire E5-575 v: V1.23 
  serial: <root required> 
  Mobo: Acer model: Ironman_SK v: V1.23 serial: <root required> UEFI: Insyde 
  v: 1.23 date: 01/16/2017 
Battery:
  ID-1: BAT1 charge: 26.1 Wh condition: 26.1/41.4 Wh (63%) 
CPU:
  Topology: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP 
  L2 cache: 3072 KiB 
  Speed: 500 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 500 2: 500 
  3: 500 4: 500 
Graphics:
  Device-1: Intel HD Graphics 620 driver: i915 v: kernel 
  Display: x11 server: X.Org 1.20.6 driver: intel resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 620 (Kaby Lake GT2) 
  v: 4.6 Mesa 19.3.2 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel 
  Sound Server: ALSA v: k4.9.210-151.lts 
Network:
  Device-1: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  driver: ath10k_pci 
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 
  IF: enp3s0f1 state: up speed: 1000 Mbps duplex: full 
  mac: a8:1e:84:54:21:4a 
Drives:
  Local Storage: total: 931.51 GiB used: 401.19 GiB (43.1%) 
  ID-1: /dev/sda vendor: Seagate model: ST1000LM035-1RK172 size: 931.51 GiB 
Partition:
  ID-1: / size: 95.62 GiB used: 42.30 GiB (44.2%) fs: ext4 dev: /dev/sda4 
  ID-2: swap-1 size: 8.00 GiB used: 72.6 MiB (0.9%) fs: swap dev: /dev/sda3 
Sensors:
  System Temperatures: cpu: 48.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 240 Uptime: 1d 11h 35m Memory: 7.73 GiB used: 3.21 GiB (41.5%) 
  Shell: fish inxi: 3.0.37
          6 days later

          Wifi is working fine for me, but I have some freezes sometimes. Im using the 5.5.3 kernel. Maybe updating it to 5.5.4 may fix the problem?

          I am using intel hd graphics btw

          The issue is with Intel's drm/i915 code. It's an upstream issue they addressed in 5.6 RCs and AFAIK they have not done stable backports to 5.5 for it yet. The code is not in for 5.5.4.

          It's not in our hands. Unfortunately I have literally zero influence at Intel, otherwise I'd probably make it more like AMD 😛

            JoshStrobl I went back to 4.19 lts, but the freezings still there, is it a kernel issue then or no? also, thanks for answering too fast!

              May want to take a look at updating the bios, if an update is available. It helped me with some issues I had on my laptop.

              3 months later

              Hey, so this is not for that specific update but the same issue on 5.6 (current). When doing something graphics intensive (like playing 3d scene in godot) 2/3 times whole thing locks, i can see mouse mowing but i cant interact with anything etc. I tried installing lts kernel and while everything appears to work well, objects in 3d scenes are not displayed at all. Just an empty window with background. I tried unistalling xorg-driver-video-intel but that doesn't seem to do anything. Is there anything else i should remove/ install, any file i should regenerate? I'd be fine with either stop 5.6 kernel from locking system or 4.9 displaying 3d objects...

              EDIT: issue for 3d objects not rendering on 4.9 lts kernel seems to affect only OpenGL 3.0 as switching renderer in godot from GLES 3 (OpenGL 3.3) to GLES 2 (OpenGL 2.1) fixes the problem.