OK after seeing how @Staffy seems to be much more disciplined than me at sticking to getting through his backlog, I thought I’d post mine here to try and keep me on track for getting mine down this year.
I generally end up playing the games that I really fancy (or friends are loving), with the ones that require more commitment or energy often pushed to the back, such as:
- Life is Strange: True Colours - I really liked it but I reached the LARP bit and want to do it properly so haven’t had the concentration to go back into it for over a year, I’ve even bought the DLC in that time
- AC Valhalla I got really far but it started to drag and I hated its depiction of Wessex / the Anglo-Saxons having loved the Last Kingdom so haven’t gone back
- Starfield I did the main faction quests but can’t be bothered to go do all the temples
- Baldur’s Gate 3 I hit the bit where I couldn’t see where in a rock someone disappeared because apparently failing a roll of the dice makes me blind, and it tried to force me into some moral decision with little information and I found I’d already missed out on a companion so I’ve given up and not gone back
- Forza Motorsport I’ve done the first tournament or two, but it was getting a bit too samey particularly with how few tracks it launched with and no music or “fun” side things to do (I guess I’m more a Forza Horizon guy as I’ve fully completed all of them!)
- As Dusk Falls gave me too many decisions which apparently all lead to bad things so I decided to give it a rest for a while as I play games to chill out!
- Many other games I’ve put down when I hit a hard / boring spot and said “I’ll come back to it” - SteelRising, Control, Quantum Break, Jedi Fallen Order, Close to the Sun (learnt most of the story, got bored), Vampyr, Jusant, Watch Dogs Legion, Fallout 4, Persona 5, Somerville, Ghostwire: Tokyo, Eastshade and Yakuza LaD - while some others I’ve stopped playing as I don’t want to do the final mission and have bad things happen or they’re a pain to do (Greedfall, Witcher 3, AC: Origins).
What I’m trying to say is I’m terrible at finishing games - and that’s without looking at Tales of Arise, Botany Manor, Far Cry 6, The Quarry, Road 96: Mile 0, the Obsidian South Park RPGs, SteamWorld Build and Ace Attorney amongst others which are all in my backlog 
On the plus side I do fully complete games I really love - Mass Effect Trilogy Remastered, Unpacking, Firewatch, Lake, Tell Me Why, Myst, Superliminal, Maquette, A Short Hike, Powerwash Simulator, House Flipper, Escape Academy, Road 96, Pentiment, The Outer Worlds, Elder Scrolls games, Moving Out 1 and 2, MW5, Last Stop, The Invincible, Deliver Us the Moon and Deliver Us Mars, Immortals Fenyx Rising, AC Odyssey, Open Roads, Hogwarts Legacy, HiFi Rush, all the Forza Horizons, Halo Infinite, The Gunk, The Forgotten City, Dear Esther, ME: Andromeda, Call of the Sea, What Remains of Edith Finch, Spider Man, Everybody’s Gone to the Rapture and Anthem are the main ones I can think of this and last generation…
(Mentioning these in case anyone spots a pattern and has recommendations - always room on the backlog! 
)
I’m currently playing through Immortals of Aveum, House Flipper 2, A Little to the Left and, Banishers GoNE, with my eye on Robocop, Kona, Harold Halibut and AC Mirage (I don’t learn)