Three issues with the update on Linux:

[pilky01]

• The vertical tab texts in dark mode is also dark and therefore unreadable
• Also in vertical tabs the new tab button turns white after mouse hover
• Thirdly the new tab no longer support the plugin darkreader
• Not an issue but I think the new vertical tab switch icon is over-complicated.

[#2]

Hi,
in case developers don't view this thread, if you haven't already, please submit these important bugs using feedback button on Edge Linux too

[#3]

Hey there @pilky01, I'm sorry to see these issues after the update but thank you for reporting them! I just want to double check your version of Microsoft Edge and your Linux build info, then I'll flag this to the team. Please do still submit feedback as @HotCakeX described as well =)

Thanks!

-Alex

[#4]

The os is Ubuntu 20.04.2 LTS, and the Edge version is 89.0.774.8 (Official build) dev (64-bit)

The issues are only in the theme GTK+, which was automatically switched to when updated so I wan't aware of it.

@Alexandra-R 

[#5]

@pilky01 Thanks for checking in on that, it's very interesting you're only seeing this issue in the GTK+ theme. Definitely also submit feedback as @HotCakeX mentioned =)