If a work is LooseCanon does that offer some degree of flexibility from certain standpoints?

I saw this on the WMG.Sonys Universe Of Marvel Characters page:

If a work is an Alternate Continuity and follows the original in Broad Strokes, but doesn't directly contradict certain things, does that offer some degree of flexibility for canonicity, and could make a work Schrödinger's Canon in a shared universe?

For example, some of the Dragon Ball Z video game spin-offs are Loose Canon, as described on the trope page, but also Alternate Continuities as well, yet they're not too contradictory to the main things?

I was going to add an entry page for the Arrowverse comic-book Spin-Off media, which their wiki says in non-canon, but could they be considered Loose Canon as some of the story arcs don't seem to contradict the TV series, except maybe, for when Barry Allen/The Flash met Felicity Smoak, so would they in general be Loose Canon?

I know that a work can be simultaneously Loose Canon and Broad Strokes, but just to check, a work is Loose Canon if it's not relevant to knowing the greater context of the Shared Universe, and won't cause Continuity Lockout for a new viewer/reader.

For example, since the Crisis on Infinite Earths (2019), would Stargirl (2020) be considered Loose Canon to Arrowverse, even though they've had a different Stargirl, based on the Justice League (same name, but slightly different background)?

I want to check to ensure this is correct - I'm wick-checking every example of Loose Canon that I can.