This is absolutely happening. I'm not a developer in SV, I'm an IT leader out on customer land, and I can tell you a LOT of companies are looking to bring things back on prem for security and cost reasons. And before anyone laughs, yes, you ABSOLUTELY can save money going on prem, I've done it for company after company. It's one reason the PE firm that I've worked under for a decade kept moving me to new companies.