[bungle]

I'd love to understand when a browser account/profile picker is useful? I do know that I need to pick e.g. account for which Gmail inbox I want to read, but that happens inside Gmail's account picker. I know that I could have profile in browser so that it always logins to right account, but then again when I browse different things, I do not want to constantly switch the browser profile either. Then on computers you have separate user accounts already that different family members can use without leaking their personal data.

For development, the incognito/guest is usually good enough (when you need to have "clean" state).

[isodev]

I use different Safari profiles when browsing work related websites. For example, I have my personal Apple ID and Microsoft account, but for work I need to sign in with another. It's handy to use a separate profile, so one doesn't need to constantly switch. Another aspect is bookmarks - for work, I need all kinds of company tools to be easily accessible that don't belong among my personal favourites.