Mint is honestly your best bet. I installed it for my parents on their aging laptop and they’re allergic to the terminal and they’re getting on great with it. Requiring a password for administrative actions is generally a good thing for security but you could disable it (unfortunately the only way I know how is via the terminal!). I’m biased here because I’m a techy person but I’ve used Windows, macOS and Linux professionally for years and I always have to troubleshoot things. Windows, in my experience, has always been worse than the others because while Linux has very technical or terminal-based solutions a lot of the time, Windows official support generally tells you to “just reinstall or restore from a system restore point” which is such overkill for most problems. That or registry edits.
I have to wonder how many windows devs are aware they’re just making windows worse.