I have read that other people with tpm capable motherboards and older cpus have successfully installed windows 11 without any issue it's just getting past the tpm 2.0 just need to know if I brought it for my motherboard as the socket is there would it work as the bios I can't find any tpm/ptt in there
Yes, people have.
A LOT of that (almost all?) was from the Dev/Beta releases, which had far less restrictions for CPU and TPM.
Will you still be using this system to game on 3-4 years from now?
Doubtful.
Except for the 'ooh shiny', there is NO performance benefit for Win 11 vs Win 10.
Most of my house systems are not "Win 11 capable", as told to me by MS.
Yet their performance is exactly as it was a month ago, before Win 11 was...