... aus dem MW-Link in #1 :

 bossing

verb

Definition of bossing

present participle of boss

1   as in supervising

to be in charge of she bossed that project for years, until she was promoted again ...

2 as in governing

to exercise authority or power over

bossed the entire job site for a year

3 as in commanding

to serve as leader of

bossed the entire gang of electricians on the construction project

Hier auch die restlichen Einträge aus dem MW-Link in #1.

"Found & Flourish presents Bossing It, the weekly podcast for women in business hosted by entrepreneurs Frankie Cotton and Lara Sheldrake." (Kurzvorstellung des Podcasts auf Spotify)

Der Sinn ist hier wohl etwas (selbst) bestimmen oder im Griff haben und natürlich Chefin sein.

"Being a boss" is slang for: being cool, being awesome, being admired/feared/in control.

https://www.youtube.com/watch?v=RXL2RQLP-0k

A more recent development has been the evolution of the term 'girlboss', which means a young woman who is getting what she wants in all domains of life (career, romantic, etc.)

"to boss" hat in der Umgangssprache die Bedeutung "einen Tätigkeitsbereich gut beherrschen", "eine gute Leistung erbringen", der hier gemeint ist (BOSS | English meaning - Cambridge Dictionary).

"girlboss" kommt wohl aus der anderen Richtung (sein eigener Boss sein, sich nicht fremdbestimmen lassen).