EDIT: Removing unnecessary comment to focus on what’s this about.

Linux keeps prompting me for password when I don’t need it to (installing programs, changing settings etc.) but when I would actually want it to - viewing passwords saved in web browser - it doesn’t. I’d like Linux to prompt me to enter password when viewing passwords saved in browsers. This works by default in Windows. Anyone know how to fix set it on Linux?

System: Linux Mint 21.2 Cinnamon (but it was the same in 21.1).

Browser: Vivaldi 6.1.3035.111 (Stable channel) stable (64-bit), but it’s the same in Waterfox.