Samsung [^1] has an autoblocker. I have no idea what it does exactly. I always need to turn it off while installing or updating anything from F-droid. Then I enable it again in the naive hope it might prevent dome drive-by attack.
[^1]: My employer paid for it. I never would pay for the crapware full of uninstallable stuff I don't want. Is Pure Android still a thing if you don't want to pay The Evil Company?