I take it that all these are for upgrading early access and can be ignored?

I think the EA suffixes give those away. Not sure why they are still there.

Yes, it didn't seem too mysterious. I was curious why they were labeled as patches, though. It might get cluttered when the real patches get released!

Yeah - It's a bit messy, but you can ignore those patches.

Only the two bottom files are important, because they give the Deluxe Edition upgrade.

I am sure it will all be cleaned up later. I am just grateful we got the off-line installers.
Now - If they also correct that Data mismatch error in the start-up screen, we can play this game comfortably.

That has been there for weeks (that I know of) on the EA version. I doubt it's a higher priority now than it has been in the past.