Brand new buyer - Where to host if i going to max this baby

so ive been receiving these emails form wpmudev for 5 years and im going all in on a HUGE multisite network - using the domain mapping with create site to create all the sites at one time.

so i use managed hosting now at godaddy and wpengine

does all this wpmudev stuff work on a managed installation (or is that already a multiste//)

looking to get started today and im not looking for a company recomemendation, as much as the level and criteria i need.... or just a link would be great frm any member