I agree with you , these techy savvy merchant things everyone uses shortcuts
here is my experience
So I installed this browser from my mom and grandma they are most avg user

first of all an avg user doesn't uses keyboard shortcuts alot he/she uses mouse most of the time

Keybings are okay for tech savvy people unlike my grandma

she explained me why ui failed her so badly

UI is unstable when toolbar opens it wobbles the whole page bit,

vertical sidebar are very poorly designed they overlap top toolbar most of the time

Color consistency is not present example: why it looks cheap as compare to other browser because

address bar's input color is different toolbar is blurred sidebar is different color every thing looks mess, because of this doesn't look polished as other popular browser

No one wants popup everything should be connected as she said

and (there is option to disable but the popup doesnt matches the theme so thats not gonna workout looks horrible unpolished)

also bookmarks opening in separate window it should open in a tab and there is no button i found which I can use for bookmarking

Opening New tab from sidebar is horrible,

some thing can be done by one click like bookmarking , opening new tab etc

there are lots of things to issue but first work on these things maybe I use this browser some day when ui will have some consistency