I'm (as a dev experimenting with the fedi) more interested in the features each platform adds to the fedi and ensuring we have consistency. Which is probably included in what you said, i'm just being explicit.
Ie regardless of if it's an upvote or a star, hypothetically it should have a similar effect in all platforms that federate with that value. If it modulates score in an algorithm, it should "mean" the same thing to the fediverse so that it has similar outcomes in all platforms. A silly but extreme example of this failing would be one site upvotes and downvotes meaning opposite things on two implementations - it would be chaos hah.
I hope (but don't yet know until my implementation is further along) that Like and Boost are functionally different. I also hope no ones implementation is conflating them.
Either way interesting times and i'm excited to see where we take it :)
HamSwagwich