Used thinkpad ok for casual retro gaming?

Hi, want to buy some used hardware to run with Linux (Gnome DE ON Mint, Debian OR ElementaryOS). Mainly Office use, transcoding, but also for casual gaming Half-life 2 and maybe some more modern games.

Are Thinkpads with integrated GPUs sufficient for that? Any nice alternatives which are sturdy and can be upgraded?

TIA!

EDIT: thank you for all the helpful input. Will check AMD options!