Hello,
I only use Synology because they were the market leaders at the time.
I have seen very positive reviews and tests of UGREEN.
On the Clubic comparison website (in French), it was voted best NAS 2025/2026.
Like all NAS devices, they are installed using a browser. From what I've seen of the installation, it's quite similar to what Synology does. So it will also work with Solus.
To use it with the file manager, you need to modify the fstab to access it.
This step is explained on their website. How to view NAS files in the manager with Linux. You will probably need to adapt it a little.
If I had to do it again or if mine broke, I would go to UGREEN.