[Windows update installing the new Edge browser] Update KB4559309 Makes Computer Unbearably Slow

I had major problems with both the 2004 and edge updates on 3 of my 4 machines. The updates are getting more and more complicated for less and less improvements. Where possible I have rolled back to 1909 but the edge update won't roll back as it seems to be more than just an edge issue (particularly when you try to remove it and it says can't remove as it is needed by something else). I am now waiting in the hope Microsoft will sort it out soon. In the meantime I will be saving hard for a Mac with its promised own chip/motherboard. I have tried all the suggestions offered by the various experts on the forum and all that happens is it gets more and more frustrating (I do thank you for trying to help). Hopefully if enough of us moan they at MS will do something, but we really should not be in this position. So on this subject I will now end my involvement...good luck to all of you with this issue

Not seeing this on any of my 5 Windows 10 machines.

I have the same experience. After this update that included an automatic update to Microsoft Edge, my laptop takes a long time to start and I cannot use Google Chrome without my computer freezing. I use Chrome as I feel it is a superior browser, and now I am being forced to use Microsoft Edge just so I can continue to work and allow my son to keep studying during lockdown. At a time when people across the world are struggling to make ends meet and keep learning, I think Microsoft need to release an urgent update to resolve these widespread issues.