FreeSync on a low end monitor working as it should?

invalid@example.com (Dave3000), Dave3000
Tue, 17 Feb 2026 21:23:07 +0000
Displays

I tested my mom's spare monitor which is an HP M22F monitor that has the FreeSync feature which under AMD Radeon Software under the Display category is says that the FreeSync range is 48-75 Hz for this monitor. However, I tested my PC on this monitor and in GZ DOOM (Vulkan renderer) the FreeSync seems to usually only kick in at 51-74 fps caps on this monitor and sometimes its FreeSync will kick in at 49 fps cap but that's a hit and miss and never kick in at a 48 fps. Is basic FreeSync, especially from a low-end monitor, working as it should? Should it always kick in at its advertised FreeSync range meaning on this monitor I should see no tearing or juddering at a constant 48 fps to a constant 75 fps assuming the frame rate stays between 48 and 75 fps even with VSync disabled? Also I read on the internet that if you want to use VRR, it is recommend to cap the frame rate around 3 Hz below the refresh rate. I'm not sure if this advice applies to the bottom spectrum of the VRR...