Currently, my favorite ways of running non-Steam games are the Heroic Games Launcher and Bottles. Heroic is especially nice if you have games from GOG or EGS. However, looking at ProtonDB, it seems that both DCS and Flight Sim 2024 don’t work too well on Linux. Overall it sounds like it might be challenging for you to switch to Linux, but you can always give it a try and see how much works.
Currently, my favorite ways of running non-Steam games are the Heroic Games Launcher and Bottles. Heroic is especially nice if you have games from GOG or EGS. However, looking at ProtonDB, it seems that both DCS and Flight Sim 2024 don’t work too well on Linux. Overall it sounds like it might be challenging for you to switch to Linux, but you can always give it a try and see how much works.