Prevent sign out on installed app or add whitelist with clear on exit

Description of the issue:
i have installed two sites as app and whenever I close the browser and open it again I always get signed out of the site, I have enabled clear on exit and checked [browsing, download, cookies, cached] only

additional question, when clicking a saved site in the right sidebar is it possible to load a site with its own window just right of the browser similar to vivaldi browser?

How can this issue be reproduced?

1.go to site and sign in
2. install as app
3.close app
4. open app

Expected result:
to be still signed in when I open the app again

Brave Version( check About Brave):
1.65.114