If you want Linux support, especially for the editor/IDE, then Godot is just about the best. I am still evaluating engines, but I've tried most of the big ones. The thing that brought me to Godot was that I was on Ubuntu for a while, and couldn't get the big "U" engines working to my satisfaction. Godot works fine on Ubuntu and probably other distros no problem. Now I am back on Windows for the time being, but I still like Godot even if it isn't as powerful for 3D, 2D it does quite nicely.
I haven't tried to develop with RPG Maker, but I've played a few games with it and I feel it is too cookie-cutter. While all engines have their distinct look, I can usually spot what engine is in use just by looking at a screen shot or video, RPG Maker just looks too generic to me. While, of course, a lot of this is the artwork (and the fact that developers probably re-use default or store bought assets) it was always a turn off for me and I don't typically buy those games anymore. Godot too can look generic, but you have the power to do what you want, so you can make it really personalized to the look and feel or your game.
Godot, I would say, is fairly beginner friendly. Game development is hard in general, no matter what engine you choose. If you want to make a game from scratch, then there is a lot of skill and work involved, in the programming, in the art, in the sound, design, etc. No engine will make this easy, but I find that Godot definitely is the easiest of the general purpose engines. It only took me about a weekend to get up to speed, but a beginner could probably spend a few weeks to a month to understand how things work.
So, yeah, I would give it a try and see what you think. Godot is not perfect, but it's under active development and new versions come out all the time. I have some reservations about the 3D graphics, but I am hoping that will be resolved with Godot 4.0. Otherwise I really like the workflow and I find myself very productive with the editor. Good luck.