There are always going to be certain compromises when you share walls and/or floors and ceilings with neighbours. Even if everyone owns their own unit, there’s a lot of shared infrastructure, and that means discussing, dealing and compromising on all kinds of things. If you own an entire building and the land surrounding it, you have a lot more autonomy.
I’ve had one friend vow never to buy a condo again after having to deal with his condo board for a few years, and he lived in a small 8ish unit building. Another friend served on her condo board for under a year and said it was one of the worst experiences she’d ever had to deal with.
From an environmental point of view, apartments and condos are great. They’re great for public transit. They’re much more efficient in how they use land. They are much better for heating and cooling. But, people being upright apes, a partially shared living arrangement like that can be truly awful.