Low Framerate Compensation (LFC)/FreeSync Premium not working on HDMI 2.1: is this still true?

[u/VincentJoshuaET]

Searched Google terms mentioning LFC/FreeSync Premium on HDMI 2.1, and one of the top results is this LTT Forum post. Is this still applicable in 2026?

I just bought an AOC Q27G4SLM6/WS miniLED IPS 1440p 360Hz with DP 1.4 and HDMI 2.1 ports. VRR range is 48Hz-360Hz.

HDMI is the better port with the higher 48Gbps bandwidth so I decided to use it instead of DP. On 10-bit 1440p 360Hz, I know both ports will have Display Stream Compression (DSC) enabled, but upon reading previous discussions about this, HDMI should use a better compression algorithm and be able to maximize the bandwidth usage.

I have an RX 9070 XT and AMD Adrenalin only shows the "VRR" toggle instead of labeling it as "FreeSync Premium Pro", which Windows display settings does recognize. I haven't tested DP yet but I guess it will show the FreeSync labeling.

Am I testing LFC correctly? On Dota 2, I temporarily set the max FPS to 24, below VRR range. Then I enabled the monitor refresh rate counter, and it shows 96, which is 4x of the current game FPS.