That’s strange, the WhatsApp app on my mobile hasn’t glitched ever and I’ve been using it for like 5-8 years or so? I can’t even remember since when.

Can’t talk about the desktop app as I don’t use that, I use the browser app which is always amazingly well with the few exceptions where sometimes they make an update and then it doesn’t load for a few days, but this has happened only twice in all the time since I’ve used it