In general, pick big well supported distros.
Smaller more specific distros like Nebara may sound good, but if there are issues, you will have to wait a long time for a small team to fix them, or work it out yourself.
All standard distros can be used for gaming, you may need to find a way to pull in the latest kernel/drivers/packages if you want thr most optimises experience though.
I was comparing Signal to WhatsApp, not to Telegram