Yeah Linux still has plenty to work on. It’s unfortunate how limited the support is. If game and app developers could target Linux, then the cost to support and maintain would be lower than they have to do with Windows. Unfortunately, market share and power of defaults work against us.
If you can, look towards getting a steam deck. At least that is a Linux thing that is pretty decent and portable.
I run a personal dnsmasq just for dns resolving/routing. It integrates well with Networkmanager. Easy to work with and very reliable to have the DNS resolution and routing be handled by dnsmasq. Single command to reload NetworkManager which also reloads the integrated dnsmasq. I like it and it offers a lot of control for me. I hate having to use the hosts file for when I am connecting to labs via VPN with their own network. dnsmasq is way better at handling subdomains than the hosts file and it feels way more reliable than just hoping the minimal DNS routing system works properly.