I know that this is not exactly what are you looking for, but have you heard about Vimium?
I have modal usage as the first citizen in my whole setup and Vimium is a FAIRLY (because there are several features missing) good modal way of using ur browser.
In Brave, Vimium + Vertical Tabs is a perfect marriage
Bro, in Brazil they are selling COURSES for you to be: PROMPT ENGINEER
ENGINEER
PROMPT