I have two Librem 14. Both are dead and headed for repair for two different issues. I have switched back to my Thinkpad P50.
I have ordered a Thinkpad P1 Gen 5 and Thinkpad P16 Gen 1.
I have built them with integrated intel graphics only and non-vPro CPU.
I am confident both will work fine. I have seen reports on P1 Gen 5 and those issues I think have been worked out.
The models you listed are old and outdated not sure why you want to go for them. Using community recommends thread is not really a good place to go unless you are trying to be cheap and save money and don’t mind super old tech.