I really wanted Solus Plasma to work for me again on my 2nd Alienware M15x laptop.
However, since recently re-installing multiple times I kept having issues.
Therefore, first thing this morning I installed Solus Budgie instead, ran updates, installed the LTS kernel, then Nvidia drivers.
All is smooth again on this machine.
Thanks all for your help, hearing me out, and advice, especially @Justin
For some reason Plasma no longer works for my hardware, but least I am still on Solus, and I love Budgie.
Now I have Budgies! 😃