[Samsung Galaxy S8 & S8+ Cross Device Development] k4piii1:
I think the s8+ is well worth one or two years more, I didn't see any major update on the new flagship, maybe minor improvements as natural progesion. Unfortunately for you you have to switch. I buy used phone most of the time because I can get them 6-8 months old for 65% discount, but it works with the major brands, apple phones, samsung, lg, etc.

1+6t notch -> can be disabled -> ok then screen get reduce same as the s8+

no need with 256MB of memory -> you would say 256gb which is a lot :D what about the read/write speed? on BF microsd of 400 gbs were for around $79 on sandisk. This is a must have for me, 40 gbs on books , studies and audiobooks.

no headphone jack -> you get a small USB C connector in the box -> ok for most people

slower fingerprint sensor -> no ... it is not slow ... just a tiny bit slower than S8 -> but screen have a plus, anyways I wear a mi band so the phone is unlocked near me. BTW, the hard press home key is also available on 1+6t? this is a really nice to have for me.

flat screen -> true -> I like that for the glass screen protectors.

1080p screen -> true -> maybe better battery, what about outside brightness?

no waterproof or ipxx -> true (but I don't care so much) -> my work enviroment is really rough I wash my phone once a week, and every 3 days clean the dust. For me is a must have

camera maybe same as s8+ in the best cases -> don't know yet ... have not compared any pictures-> it is don't worry, not huge but still is.

dash charge is not standard -> what means "standard" for you? the dash charge is a lot faster than Samsung's -> most of the chargers I bought are QC 3.0 for cheap with brands like anker and ravpower. Dash charger is expensive so I would have to switch.

very fast (fatser than S8) -> yeah they modified even with overclock the cpu and add no bloat I can see. But googlewiz run fast enough for 99% of the population I would say.

- dual sim -> prefer microsd or both, but nice to have.

- face unlock is very fast (not sure how safe it is) -> so so its about 80% secure, there are some youtube videos, another nice to have.

- standard "black" theme + you can tune the non-black color -> nice to have

- screen quality is good, S8 is a twad better ... but no complaint really -> no issues, the technology is mature enough as well, difficult to tell the difference.

- standard immersive mode with navigation gestures (better than the Pixel pil) -> I achieve that with xposed edge, not as fast but very very responsible 9/10

- almost no bloat (and can be easily turned off) -> a must to have, almost as googlewiz xD

- complicated partitioning with A/B partitions ... still have not figured it out yet and bricked my phone already x2 (lol) -> have no idea what is that xD but since its working it doesnt matter anymore.

- slightly too big - > according to versus dot com, my s8 plus is even bigger, 1.4 mm wider, 0.1 thicker and 2 mm taller. I love big phones, but this is a personal preference.

idk how you manage to break your screen, even for me in my dusty enviroment not even a scratch in the screen without screen protector, but a clear spigen case.

Hope you can give us one more year of googlewiz, to switch to the galaxy note 10. Hopefully, and good luck with your new toy.