Sites that push clickable buttons down whilst they're loading, causing you to misclick.
The worst is when they be intentionally make the desktop site incomplete to push you towards using the mobile app.
Also to add to that, mobile sites that keep trying to get you to install/open the app...
Around 2-3 months, though I admittedly wasn't very active here compared to the Reopened subreddit, Tumblr and Raddle.
Just thought I'd check out Lemmy again after the recent R*ddit No-Opt from personalized Ad Bullshit (even though that's probably illegal under GDPR), and with the news of Sync & Boost for Lemmy officially being out (Sync already was availible under early access on Google Play, but I'm pretty sure it's now out of Beta), though I'm using the site rn, but I have Sync on my phone.
edit: for some reason the original image I was trying to attach didn't work 💀
Isn't that illegal under GDPR or something?
Don't know of any that are publicly available yet, but I remember hearing about somebody working on one.
The raddle site does work quite well on mobile (probably better than the Reddit mobile site), though obviously a native app would be better.