It sounds like you’re getting into the keeping it running phase.
First, going back to your previous comment, self-hosting email is difficult. It’s not hard for a small provider to end up blacklisted and you’re probably kind of just done at that point and it will feel very unfair. I get that it’s a fun set of technical challenges, but you couldn’t pay me enough to help someone self-host email.
Second, guessing, but it sounds like you may be trying to expose your services directly and doing a lot to make that work which goes against what most would recommend for hosting your own services. Big companies don’t expose their intranet like that, follow their example. Almost every guide or system is going to warn against that. If you’re going to host more than one thing, highly recommend focusing on minimizing entry points and looking into a VPN-like solution for accessing most if not all of your services. Still spend time on securing your intranet, but most of your risk is going to come from how hard it is for people to get past the front door (or doors).
I think they’ve learned that they don’t have to care about that to be successful. We have to keep reminding ourselves that success by these studios does not have to be defined by ‘making a good game’. Starfield was a great success financially and there’s no reason they should change gears from that perspective.
Starfield has made around $700 million.