Try to use "Samsung Dex"
And ask for update check via PC or laptop.
It worked for me about a month ago!
I have note 10+ 5G with Vodafone.
This software may have access to different servers that are not accessible via the phone.
I was tired of trying and pushing update button so many time for a few weeks!
I hope you also get the update. The interface of Samsung Dex is also interesting. It's worth a try!
I have DeX use occasionally never seen firmware update option outside running phones standard settings app through interface. Any instructions on how you did.
System wide dark mode. Device+battery care is more informative. The new navigation gestures I had on my pixel 2xp for ages re finally here. Way better than Samsung's version. Theres a few things I've wanted for a while I'm glad they're finally here. Look up what cha ges came and have a play with the new settings