Another mental burden to remember to turn off slack notification, and notifications of this other Collab tool whenever I do not want to be interrupted.
Also, at least for me, it's not black and white when I need quiet time. I might jot down something, brings another idea and suddenly I have a new idea to fix a problem which has been nagging at me for months and off I go for 10 hours.
I won't think about turning off notification until there is one - by then my mental flow has been disturbed.
But I do love home office, I just want to outline that managing notifications is not without friction.