If you are willing and able to use browser extensions, I have a tampermonkey script that can help. It does not protect you before you see a game, but you can remove the game from being seen for future visits.
It also works on the itch.io page, but not on profiles and collections.
It's the last script on that page I linked and has no screenshot. Default behaviour is to hover over the game, press 1 on the keyboard and it's gone from now on. And in library pages, it will have a yellowish outline. You toggle it "off" with key 5, which effectively just applies the library style everywhere. Pressing 1 again removes the game from the filter list.