I think that people generally overestimate how much money tech companies like this one actually make. Their profits are tiny. A lot of the time, tech companies run on investment money, and can’t actually turn a profit. They wait for the big acquisition or IPO payday. So if you think you’re actually gonna get 100k off them, good luck. Sometimes they’re barely keeping the lights on.

Hibernate and suspend are different. I configure my laptop to suspend for 3 hours before hibernating. That means I can close the lid for lunch or a commute and instantly resume, but if I leave my laptop in my bag over a long weekend, the battery isn’t drained. Does it save much battery? Dunno. A few % over a few days maybe.

If it’s a laptop and you want to be able to hibernate, swap must be large enough to hold system memory, plus a little extra just in case. Other than that, everything depends on the workload. Generally, no. Maybe a few gb in most cases.

I run a single headscale node on one of my free Oracle OCI instances, and connect about a dozen devices to it. No fear of adding friends either, since it’s free.