It's a simple BIOS check but it may not be listed as TPM. On some Intel chipsets it will be PTT Platform Trust Technology. It's a simple enable save and exit.

I would caution from my own experience, that if your computer is simply a work machine; and not your main source of entertainment and/or social engagement; then you probably don't want W11 at this time. If you like loyalty rewards for messing around online, chatting with friends, or using MS apps and don't mind being tracked while you do so; then run, don't walk; to hit that big grey upgrade button. Loyalty reward points in your OS. Really. I must be getting too old.

On the other, more relevant hand; I have run limited tests with P11 and P12. So far both seem to be functioning fine. I have not been exhaustive though.