Most story games I play once, however long they take. Only a few get the "privilege" of a re-play.

Multiplayer games or games that don't really have an ending I might put in more, like 200h in PUBG, 420h in Satisfactory (so far), 400h+ in Monster Hunter World, different roguelikes with 100h+, etc.

On Steam, the two games I've put in more time than almost all others are Nioh 1 and 2, with a combined 1200h. That's not even multiple characters.

Only looking at Steam, it's probably pretty even between story games and these "forever games."

Then there are Blizzard games, which I've played more than basically anything else. I have probably over 25k hours in WoW, thousands in Diablo 2 and 3, hundreds in Heroes of the Storm and Overwatch. Their games pretty much always do it for me, which is a shame, since it was revealed how much of a shitshow the company is, so I currently don't play their games.