There are quite a few all-in-one Linux distros like this geared for small businesses/enterprises to basically be a “gateway that does everything” type of produc

There are quite a few all-in-one Linux distros like this geared for small businesses/enterprises to basically be a “gateway that does everything” type of product (they were all the rage like ~8-12 years ago from what I remember?). A couple others that are popular are Zentyal and Univention Corporate Server, which I believe is _quite_ popular and used quite a bit in Germany and Europe.