A:AnswerJust look at the specs to decide, Monitor technology isn't evolving much at this point besides getting cheaper. 4k monitors from 5-8 years ago are on par with current ones. This was released in 2019. If you want a high refresh monitor because you play like cocaine is saturating your veins, go get am monitor with a higher refresh rate.
A:AnswerYes you can adjust frame refresh in Windows display settings, it also has amd freesync so some games should just apply the best settings automatically if you've an amd gpu