Hi @DaveTudor Adaptive Refresh rate and wqhd+will certainly give you the best experience, some customers though prioritise maximising battery life and so will either have standard refresh rate or FHD+ on at least some of the time. I would start with the best settings initially though anyway and see how that goes. Just be aware that it takes the AI a little time to learn your usage patterns. If there are some apps that you do not use a great deal think it is best them into sleep mode. You will find a lot of options on the quick settings menu which you can adjust depending on preference.
A lot of modes on the camera and need to experiment a bit to achieve the best photography for your needs. can see more about tips for the S21 Ultra here: https://www.phonearena.com/news/Samsung-Galaxy-S21-Plus-Ultra-tips-tricks_id130151 one video here but sure you can find others :
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
