Are you confused on why there's many different versions of Valve's Proton? The compatibility layer that runs Windows games on Linux / SteamOS and Steam Deck. Here's a little guide on what it all means.
How many software do you keep multiple versions of installed on your computer? How is it not logical to expect the newer version of something to still be able to do what it did before and more?
Just saying, from a user perspective it’s not what people are used to, they don’t keep multiple copies of the same software installed in case an update breaks something and they expect that if something breaks the fix will come in an update, not that they’ll fix the issue by forcing the use of a previous version of the software they don’t even realize it’s still available to them.
How many software do you keep multiple versions of installed on your computer? How is it not logical to expect the newer version of something to still be able to do what it did before and more?
When you change things you might fix some issues but you might also simultaneously create others.
Just saying, from a user perspective it’s not what people are used to, they don’t keep multiple copies of the same software installed in case an update breaks something and they expect that if something breaks the fix will come in an update, not that they’ll fix the issue by forcing the use of a previous version of the software they don’t even realize it’s still available to them.