Modding tools is also a pain point for me. If I need to use an external tool, it's hours of frustration followed by throwing my hands up and swearing off mods.
Welcome to Linux. I run mint and had screen tearing issues as well. Turns out mint detected my monitor correctly, but it had the wrong refresh rate. Once I set that to the correct refresh rate, my screen tearing was fixed. So I suggest checking that.
Modding tools is also a pain point for me. If I need to use an external tool, it's hours of frustration followed by throwing my hands up and swearing off mods.