I bought several VPSes across different VPS providers. Although I chose Ubuntu 20.04 on all providers, I found they use different Linux kernels. There might be other differences as well. In order to keep my running environment stable, I want to use the same OS image in all VPSes. But I think it’s impossible, it seems, that every vendor has some modification on internet options at least.
You can export VM’s and move them from provider to provider like that. How about switching everything to containers instead so the host OS does not matter?