Pavel Zhovner (a lead of flipper devices) wrote about Busy status bar 3 months ago in his Telegram channel (https://t.me/zhovner_hub/2073).
At https://flipperzero.one/ you can find habr.com blog link. The first post in Flipper blog was made by Zhovner https://habr.com/ru/users/zhovner/ (who has a link to telegram channel zhovner_hub).
This explanation is much more forthright.
“The main idea is to tell people to ‘F—— off for 15 minutes’ before they get to interrupt you.”
Pavel Zhovner (a lead of flipper devices) wrote about Busy status bar 3 months ago in his Telegram channel (https://t.me/zhovner_hub/2073).
At https://flipperzero.one/ you can find habr.com blog link. The first post in Flipper blog was made by Zhovner https://habr.com/ru/users/zhovner/ (who has a link to telegram channel zhovner_hub).