Here are two bugs in Finder that are amazing. Finder is an important application that Apple should have tested thoroughly.
I keep my Documents and Desktop in iCloud. For convenience I add them explicitly to my favorites in the sidebar since I find it a bit inconvenient to navigate into the iCloud section for them. Every now and again they just disappear and I have to re-add them.
I usually use my laptop with an external keyboard and mouse, but the other day I was using it detached. Occasionally, I couldn't drag files from one finder window to another while in list view; I had to switch to icon view to make it work. I've seen posts where other people reported this bug.
Even with all the bugs, I still find the MacOS much easier to use than Windows, but I find Windows to be less buggy. I guess it's all about what bugs you happen to stumble on and whether they really get in your way.