Re: I hate to say it...
I got my monthly android update from my Note 8 yesterday, that's a three year old phone on the 23rd of this month.
It's still listed under monthly support though one could imagine it moving to quarterly support after this month:
https://security.samsungmobile.com/workScope.smsb
Average lifespan of the non-removable batteries is three years so can't see them wasting much more time on it after that and four years support is an average for Samsung's higher end models, guessing you got a cheap model and got what you paid for.
Note20's announced today/tomorrow (depending on your timezone) so probably time for an upgrade myself (even though there's literally nothing the Note8 can't do and no need to upgrade, I really don't see the point in 5g right now as 4g is fast enough for a mobile device, there's always the shiny shiny impulse..).
Biting the hand that feeds IT
