This is interesting, I've often found the buttons to be useful at times on mobile, so was wondering where all the hate came from, and turns out it was because i

This is interesting, I've often found the buttons to be useful at times on mobile, so was wondering where all the hate came from, and turns out it was because iOS already has the feature built-in (I use Android, which doesn't really have an equivalent afaik). Though to play devil's advocate, I'm willing to bet 80%+ of iOS users have no idea the feature even exists, so removing it just because it's available as a system feature doesn't sound like a particularly compelling argument to me. I think having some kind of sticky navigation instead of scroll to top makes for a much more compelling UX though, since it accomplishes the same goal without the downsides of hitting it by accident causing an irreversible loss of context.