Yes there is such a place and you are in it right now! I just moved you.
No it’s not. It’s about looks yes, but also bringing simplicity to users, safety of data (snapshots), performance in many ways, so not just gaming. Only one of the Garuda spins is aimed specifically for gaming: Dr460nized Gaming using Plasma DE.
Normally the first steps is to get used to Garuda, the forum, read posts, try to help others... Participation on the forum gets you higher on the Trust Level (Discourse way of managing user accesses) and you gain priviledges.