Touch Sensitivity Issues
A number of iPhone 13 users have been reporting problems with their touchscreens, but it doesn’t seem to be entirely limited to Apple’s newest iPhone models.
The good news is that this points to the problem being related to software, rather than an iPhone 13 hardware defect, which means it’s hopefully something Apple can fix in another iOS update — assuming it can track down the source of the problem, since it’s obviously only affecting a relatively small number of users.
Some have reported that restarting their iPhone resolves the problem, at least temporarily, but if you’re running into this, you’ll likely have to wait for an iOS 15 update for it to get solved for good.