I just discovered the OneDrive path last night. Bought a gaming laptop a couple of months ago. Only use it for gaming. No Office use or anything like that. Uninstalled OneDrive within the first hour of using it. Didn't notice paths for Documents et al were altered until last night when I was trying to fix a minor problem. Despite never agreeing to OneDrive and uninstalling it very shortly after the machine was turned on, all my paths to the preset folders are now \name\OneDrive\.
Found ways to change it. Have no idea if I should. It's currently working and afaik OneDrive isn't slurping any data from it. There's no data to slurp other than savegames anyways.
But it still left a bad taste. I think my laptop is well supported by the major distros. I already know my favorite games work on Linux thanks to my Steam Deck. Having a strong urge to just abandon Windows for good.