Profile changes by itself (sometimes)

I have two profiles: private and work. I don’t know how it is currently implemented but I wouldn’t want the browser to make a request for threads from my private profile because that’s my private stuff. I don’t want it to appear on my company’s network.
The issue is that even when I have selected work profile, then sometimes after the refresh profile is being changed to private. It happens in a scenario that you can see on the attached video. But also it happens when browser craches and it’s doing like hard refresh. It doesn’t happen on normal refresh