Considering that Samsung's TV lineup for 2021 already included HDMI 2.1's VRR capabilities and 4k120, it's not shocking they got Freesync Pro certification as well. They pretty much met all the required specifications out of the box.
Frankly, we're at the point where TV's have started to outperform PC Displays as far as built-in capabilities go. Which is a shocking turnaround from just a decade ago.
I'm seriously considering one of Samsung's Mini-LED TVs as my next primary display. I love my OLED (LG B6) to death, but sadly a year of WFH has kind of exposed OLEDs flaws; the panel wear if becoming quite evident. I know newer OLEDs are more resistant to this type of degradation, but it looks like Mini-LED is "close enough" to OLED picture quality wise where I'll accept the downgrade in quality.