Aug 16 2020 04:50 AM - edited Aug 16 2020 04:54 AM
Edge Dev :86.601.1 (feedback already provided through browser feedback).. In, Youtube website installed as apps, Extensions like light mode/dark mode don't work properly without manually refreshing the web page. To reproduce the bug I have also attached a short video clip.
Aug 16 2020 08:18 AM
Since you share this feature using Feedback option in Microsoft Edge, the team probably are aware of it and they will investigate it.