I think the Microsoft's one may have been based on Clarity Boost[1] rather than Chromium's VpSuperResolution since there's still no AMD implementation in Chromium[0], but Edge VSR does support AMD cards.
A fun anecdote here is that VpSuperResolution was actually added to Chromium by Intel back in April 2022[2], citing Clarity Boost as an inspiration. It works with iGPU, but it was never enabled by default. Nvidia's patch came much later in Sep 2022[3] but enabled by default with a driver-level trigger (rather than enable behind a feature flag like Intel).
A fun anecdote here is that VpSuperResolution was actually added to Chromium by Intel back in April 2022[2], citing Clarity Boost as an inspiration. It works with iGPU, but it was never enabled by default. Nvidia's patch came much later in Sep 2022[3] but enabled by default with a driver-level trigger (rather than enable behind a feature flag like Intel).
[0]: https://chromium.googlesource.com/chromium/src/+/master/ui/g...
[1]: https://www.microsoft.com/en-gb/edge/features/clarity-boost?...
[2]: https://bugs.chromium.org/p/chromium/issues/detail?id=131838...
[3]: https://bugs.chromium.org/p/chromium/issues/detail?id=136831...