With AWS especially there is a shitton of proprietary stuff. Most of the friction is in knowledge however; the cloud environments differ, are configured differently, have different limitations and caveats, etc. Someone who has only ever worked with AWS will have to learn a lot of things anew if they switch. Hell there’s a reason why “AWS engineer” is a dedicated role in some companies.
Now, if you only manually set up some VMs and configure them like you would a regular server then sure, it’s easy to migrate. But when you are missing 99% of the features of the cloud environment are you actually using it?
With AWS especially there is a shitton of proprietary stuff. Most of the friction is in knowledge however; the cloud environments differ, are configured differently, have different limitations and caveats, etc. Someone who has only ever worked with AWS will have to learn a lot of things anew if they switch. Hell there’s a reason why “AWS engineer” is a dedicated role in some companies.
Now, if you only manually set up some VMs and configure them like you would a regular server then sure, it’s easy to migrate. But when you are missing 99% of the features of the cloud environment are you actually using it?