Replication with postgres is really simple. Combine it with patroni and it’s so much better than oracle

I’ve used Mint for a couple of years now. Gaming has never been better on Linux. It’s not perfect and there are still a lot of issues with games that use intrusive anti cheat. It depends on what you like to play. COD type games you may have issues with but almost every single player game works these days. Some times it will require a little fiddling to be fair but generally it only takes 10 min to check what’s required. Protondb is your friend if you want a good idea of whether it will work before buying