I appreciate the input, folks. I should have specified that my panels are OLED TVs, so HDMI is the only game in town. I think that’s the biggest bottleneck since the HDMI adapter is (currently) only 2.0b. I was able to find an HDMI to USB C adapter (which wasn’t cheap) that allows me to do 4k/120 HDR at 10-bit, but it still looked a little iffy. Other laptops I have with HDMI 2.1 are smooth sailing at 4k/120/12-bit HDR.
Here’s a previous thread where Kyle gave an incredibly detailed explanation of the shortcomings of the 7700s/port. I’m hoping the 5070 won’t have the same limitations.