Risk is practically nothing in your case, because you're being careful, and know what you're doing. You won't run a binary when you were expecting the Barbie movie, for example.

If you were downloading binaries, then your risk is significant, but even then, unless you're downloading new releases immediately, it's likely that your antivirus will catch the new popular ransomware after a few days, when a few thousands of people have become infected. Governments won't employ valuable zero-days on any rando who just wants to see their new isekai episode.