I need to decide whether I list these query parameters out in Search-Engine-Indexers (like it's advisable for
SID) or if I can safely remove them from the pre-made templates (language switcher).
With my setup, I provide the store-code for run-type "store" already via the server configuration and therefore I would normally say that
___store is not needed (technically).
But I wonder a bit about the
___from_store key and whether it's useful or not.
I've also seen that cookies are used to keep the store code which I think can also be optimized away as the store-code - as written - is already provided via server configuration (environment).