For a small enough company you could even just use use k3s + offsite backups. Once you grow large enough you can setup machines in 2-4 locations across the land mass where your users exist. If you have enough than a hardware fault in one isn't an emergency and you'd be able to fly out to fix things if needed.
Realistically, on all flash, you are very unlikely to need to maintain anything on a server for a few years after deployment.
That is probably a good idea for many startups. However, once you get into the world of audits and compliance certifications, things become a lot harder. But, but then again, at this point, I suppose it is easy enough to transition to some managed hardware.
Realistically, on all flash, you are very unlikely to need to maintain anything on a server for a few years after deployment.