The Telegram Desktop app is written with Qt, and I think they've done a pretty good job. I think there's a certain bias here. Most of the popular Qt apps are either open source or Enterprise software, both don't care much about UX and aesthetics. What I'm trying to get at, is that with some effort Qt apps can be on the same level (or very close) to native apps. That's what I aspire with my Qt apps as well.