AMD got it right, the solution which is leveraging FSR algorithm is actually working as efficient as Nvidia Video Super-Resolution.
I was interested about this feature when AMD deployed it with the driver 24.1.1 and did some investigation as their "Video upscaling" button shows none or very bad result, for me this switch button should not be enabled yet. When I looked into the code source (Chromium) of Chrome and Edge, the developer did not yet implement it, so no surprise it doesn't work... neither VLC, who is supporting AMD on this solution, has it done yet, but I have seens some commits ongoing, it might be for soon.
What the developers need is to implement a new library in AMD AMF's SKD, it has a Video upscaling feature based on FSR which is available starting from the driver 24.1.1. Therefore I did some coding to try it out playing some videos, and I can confirm that the result is pretty impressive!
I beleive it is a timing problem, AMD announced it to quickly while Edge, Chrome and VLC did not deploy the update yet.