You schould be carefull with your choice to use obtainium i dont want to say that f-droid is super secure because that does not exist but look at this scenario:

A developer account on github get hacked and the bad actor pushes a malicious apk update you are going to be hacked to easy and quickly.

Instead if you are waiting for updates from f-droid in the meantime everyone knows that the developer got hacked.

The easy path that obtanium offers could be a danger path but.... anyway at least is a dangerous opensource path 😂😂😂