[deanhills]

I honestly have no idea what went wrong with the VPS 9 Ubuntu upgrades @deanhills was talking about. Something for sure must have been done wrong by the holder(s) that caused issues. I’ve upgraded my VPS 9 from 18.04 to 20.04 with zero issues (the same upgrade also worked really well on all my local machines which proves that it’s safe).

@fChk was the one closest to the truth.  This must have been entirely a phenomenon of how the host had configured the VPSs and Seattle (which you have) and Chicago VPS 9 were more carefully configured - the Seattle and Chicago Nodes were of the first to be upgraded to KVM.  Specifically Seattle performance in overall was improved from before if you check a Review of the VPS 9 (Seattle) a year or so before the upgrade to KVM.  The VPS Holder then thought that the VPS had performed sluggishly.  Your experience after the upgrade seems to be much more positive.

VPS 9 owners of the other VPSs had countless issues after the KVM upgrade with for example Selinux that had to be turned off when the OS was used.  I'd put my money on that the configuration of the other VPSs during their upgrade to KVM, Node by Node, was not as carefully managed and possibly not even by the same quality and experienced Admin. For example a universal template was used. The networking was not as efficient because of shortage of time and possibly they needed to take short cuts in the configuration to automate it.  The networking had lots of issues.  Doesn't mean the end product was bad, but compared with VPS 9 Seattle (which you have) and Chicago, the others were not as perfectly configured.  You can check the discussion here that is an indication of the many issues that happened with the upgrades to KVM of the other VPS 9s - in the words of Virmach:

https://post4vps.com/Thread-VPS-9-Schedu...0#pid31990