And its backed by the Linux Foundation! So it can survive things like Hashicorp's silly attempt to claim copyright infringement.
dragnet
I've used Hetzner for years without issue. Accessed through VPNs to the control panel without problems, changed password no issue, etc. I've never heard of them being "known for" the behavior you describe. This is just anecdote vs anecdote, though. I'd be interested to see some kinda evidence of what you're saying.
VM detection that I've run into is not that hard to bypass, but it does subjectively seem to result in a less performant VM (haven't ran any tests to verify).
Almost everything you said here is false, with the exception of controversy over the developer. However, GrapeheneOS is far from a single developer project, and the former lead stepped down a little while ago.
I have a 6a, which I tolerate for GrapheneOS. The battery life is absolutely terrible.
Once they are cheaper and more durable I'll buy one. Its still a new form factor that hasn't been perfected yet, but that doesn't mean its wrong for manufacturers to keep at it
Just convenience in the form of focusing on a user-friendly out of the box experience, really. That's enough for me to use it over Debian on desktop, though I like Debian for servers.
On the one hand, sure. On the other hand, if there hasn't been even a tiny bug fix or feature update in that long it calls into question (at least for me) whether when there is inevitably a breaking change, security issue with a library, whatever - that it will be addressed. If I don't have some level of confidence in that, I'd rather not rely on the tool.
This kind of concern could be handled by contacting the developer or engaging with the community around the tool to see what the project status is, and why it isn't being updated.