You also just have to cope with whatever broken glitches there are in the game and find a way around them because aint no patch no hotfix no nothing is coming to save you
It actually wasn't uncommon for post-launch patches to be applied to later printings of games. A lot of start screens will have the version number of the game on them somewhere, so that you can tell. This is something we forget about since digital copies of older games tend to default to being the latest printed version.
Survivorship bias doesn't make sense in this context, because I actually lived then and played hundreds of games. Plenty were buggy as hell (notice I said game-breaking bugs specifically), but none were unplayable (well, not because of bugs anyway). I hear Battletoads on NES was uncompleteable 2 player, but my brother and I never made it to level 11 together to find out.