Personally I'm finding my 'unplayed' backlog is starting to be overtaking by my 'need to finish' backlog. From what I have installed on my PC over the last few years:
Dark Souls - at Seeth the Scaleless(?) and need to wrap that up now that I have 2 and 3 in my library
Pillars of Eternity - at start of last chapter I think
The Legend of Heroes: Trails in the Sky 3rd Chapter - a complimentary optional game to the series, didn't have this problem with the other games but I stalled near the end here
The Vagrant - game is just okay, died first attempt at last boss and haven't gone back
Fell Seal: Arbiter's Mark - final 1/4 of game, died against a tough boss so went back to grind a little and have yet to come back
Dragon Quest XI - I think last dungeon in epilogue. Game was great but epilogue started dragging
The Witcher 3 - maybe 1/3rd of the way into Blood & Wine
Rome 2: Total War - playing my first game as the German's got a good chunk of Central Europe conquered and was just approaching Rome
Hollow Knight - I did 'accidentally' beat the final boss, then resumed playing to 100% it. Just have the circus boss (was going to take the easy route) and the proper final boss left
Pathfinder Kingmaker - put in 200 hours when the pandemic started, 2nd last chapter (I think) just starting but got worn out with the 'kingdom management' then got into Darkest Dungeon
Currently playing:
Darkest Dungeon - I'm tempted to buy Slay the Spire but really need to stay disciplined and wrap this up first
Supraland - pretty much in the last level so should be able to finish this
Dark Souls 2 - just starting a new game, planning to play a little to re-orientate with series then get back to 1.