It's happened before in general, though I cannot remember specific instances. As for Fediverse apps, I do have one for Matrix because I think you actually cannot use that on mobile without an app. Every time I try to open a Matrix link on mobile it tells me to pick an app. For Mbin and Lemmy, I do not need an app because I'm already having a good experience on the browser. Little to no friction or complaints. I also don't feel I need anything more, so I don't want to sink that minimal effort into finding and trying an app. The post that came out talking about a lot of apps not displaying Markdown correctly further discourages me, as I don't want to track it down to find which ones do, and one of the things few apps show correctly is spoiler formatting which I use.
I see it can be about accessibility and solving usability issues on the browser now, which of course will be different for different people. Thanks for discussing with me :)