What type of issue is this?

Incorrect support data (example: BrowserX says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

Using Firefox 135, I can see these there properties are actually supported in the Firefox for Android:

discarded
highlighted
pinned

What browsers does this problem apply to, if applicable?

Firefox

What did you expect to see?

I can't tell when was the support added, or if it was ever missing.
So either use 54, just like the rest of the API, or use something newer, like 128 or 135. It doesn't really matter.

Did you test this? If so, how?

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

No response

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/query

MDN metadata