[2021] Any way to permanently delete cloud saves?

Rock and Stone, dwarves.

Greenbeard here. Started playing last weekend and immediately fell in love. I don't know how I didn't start playing this amazing game sooner.

The thing is, I want to start over completely. I know it sounds strange but I have pretty extreme OCD tendencies with video games. One of them is to play a new game for a day or two to get the feel of things, then delete all of my progress and start "fresh". Don't bother asking why, I can't really explain it, it's just how my brain works.

I tried the "Reset Progress" button in the options menu, and while that worked for my current save, all of my cloud saves still show up as available to load.

I disabled cloud sync in Steam and deleted the game folder in "userdata", but the cloud saves still persist in-game. Is there any way to delete these for good?

If not, is there at least a limit to how many saves can be backed up? Will they eventually be overwritten by new ones, or will my old saves always be there? It just bothers me to start a new game knowing that my old progress is still "there".

Again, I know this is a strange request, but any help would be greatly appreciated.