There is no general spacesuit “standard”. Suits up to this point have all been designed for a specific purpose and often even a specific vehicle. Newer vehicles have used newer suit designs to go with them. The upcoming Orion system for Artemis uses an entirely new and different suit as well. Not to mention the Russian and Chinese suits are different as well to work with their vehicles.
There is no general spacesuit “standard”. Suits up to this point have all been designed for a specific purpose and often even a specific vehicle. Newer vehicles have used newer suit designs to go with them. The upcoming Orion system for Artemis uses an entirely new and different suit as well. Not to mention the Russian and Chinese suits are different as well to work with their vehicles.
So what we need to do is keep a bunch of umbilical adaptor hoses in the glovebox of every spacecraft.
“Do we have a Boeing to SpaceX adaptor?”
“No but we can do Boeing to ESA to Soyuz to Shuttle to SpaceX. It’s 8 feet long but it will work.”
“Good enough then.”
The internet would absolutely lose it if SpaceX started selling dongles.