I been on Samsung since the Note 2. Up until a few months ago when * decided it was time to let go of my Note 20 ultra and all the Samsung phones since then have kinda sucked.
Now I'm using a Red Magic 11 Pro. 7500mah silicon carbon battery is fantastic, and so is the phone, with its fan, liquid cooling (95% looks and not function), and stupid large 24GB of ram. Phone has been great so far.
My estimated screen on time from accubattery pro at 80% charged (I have it set to stop at 80%) is 15 1\2 hours.
Screw Samsung sitting on their hands for the past decade to do almost nothing but raise prices.
RM Phone isn't all roses though. Camera is only OK, but the back being 100% flat is awesome. No microsd slot. Why I got the 1TB version. Bootloader is locked down and software updates don't last very many years.
But you know what? It looks cool and I don't have to charge it in the middle of the day. If the battery does go tits up, I won't have a problem taking it apart (done phone repairs for myself and others for decades) and replacing the battery. It was nearly impossible to get a new and genuine OEM battery for my n20U when I replaced its battery. Hoping it won't be such a pita to get a genuine one from red magic, but not holding my breath.