That’s not even the worst part of the new UI - scroll for any amount of time on mobile or make a post and you get nagged to switch to their app.
At some point recently they changed it to ask you every time you visit. There used to be an option to disable the mobile app ads. Funny that that's the only thing they've changed in six years (I left late 2016.)
Respect my preference, or don't offer the better UI at all if you want to punish me for it, or needle me out of using it.