Steps to reproduce:
1. Have a Samsung 2020 TV (Mine is Q800T)
2. Have a Samsung DEX supported device like Galaxy S8,9,10,20 or Note 8,9,10
3. Connect the phone to the TV > at this point everything will be OK (no issues with the picture)
4. Enable Game Mode > You will see a HUGE CONSTANT tearing and glitches at the bottom part of the screen, they are hugely desynced (bottom part of the screen have like 1 second delay of refreshing the image)
Additional Information:
Software version : 1115
TV: Q800T 75 inch (europe)
I also have Samsung KS7502 (2016 model I think) and I have no issues with Game Mode and Samsung Dex there !!!
Next week I`ll be getting Samsung The Frame 2020 and will report if this issue happens there as well.
Tested with 2 phones: Galaxy S8 and Galaxy Note 9
Note: I also reported this issue in the TV section.
