Today I spent 50 minutes figuring out why my app could not set itself as default for www.instagram.com links. I don't have IG installed.
Turns out the latest Samsung OTA update re-enabled Meta App Manager, Meta App Installer and Meta Services. Any of which, while enabled, will result in the user setting an app to handle certain domain links, only for the users action to be instantly reversed without notification.
Edit: that's a gif if it doesn't show up correctly. I had an app advertise itself as IG but Meta kept hijacking the link handler. An uninstallable Samsung forced Meta app, that enables itself back after each OTA update.
If this was on desktop, someone would already be sued. But android? "Sorry can't uninstall system app"