There is a touch screen issue for a lot of users which is causing ghost touching while opening applications & sometimes screen gets flicker (to know more in details visit here) | Realme Narzo 20 Pro issues
where user is complaining about
ghost touch issue
in his Realme Narzo 20 Pro)
Source
There is a heating problem | Realme Narzo 20 Pro issues
Other performance related issues:
where a user is complaining about
the hanging issue in his newly purchased
Realme Narzo 20 Pro)
Source