I just saw a random post about it here and i switched since revanced isn't really getting updated, although i still use the revanced reddit bc it blocks ads, bit buggy but it works and i also have their pirated lightroom xd.
Rustdesk is very good, but if it's not for you maybe try AnyDesk. And if you are looking for a wayland compatibile RD solution, it doesn't exist although rustdesk has an experimental support for it.
(You can use x11 or xwayland on linux)
Firstly the resolution is capped at the host machines, there is no software that i know that can upscale or do magic. Responsiveness is based on internet speed in 95% of scenarios.
I will look into the multiple session thing.
And what exactly wasn't working for you except RD?
In addition Mint comes with it's app store which is Flatpak based unlike Ubuntu s which is Snap based, flatpak is faster and just better. (Fedora might have one too but idk never tried it)
Also a very good browser for linux is Firedragon i recommend giving it a try :)
Since you are this new of a user linux mint might be better for you...
Or even Fedora because it's less resource intensive especially the Cosmic version
https://fedoraproject.org/spins/cosmic
(You can make it so one virtual desktop is floating and the other one is tiling with a click if a button) really good if you just want a working tiled enviroment without the hassle of configuring hyprland
Older nvidia drivers are bad. For new gen it's getting significantly better but Amd is still in the lead. You could try your gpu see how it works, it is possible it's still good for you. Also i recommend checking out the Cosmic desktop enviroment. It has served me well even tho it's still beta. It supports tiling and floating and stcking windows too. Costumizability is between KDE and Gnome. If you need any help just msg me :)
Only yt so far sadly......