what about the category for destroying objects? for example, break 10 blocks, 100 blocks,100 blocks,10 bushes, 50 bushes, 100 bushes or something like that, there are quite a lot of possibilities for different strategies
you can make categories for bots and online games
I don't think there's any point in doing this for each mode (except maybe splitting showdown and 3 vs 3 and 5 vs 5)
You can also add categories for 1,2,3,4,5 people
I used a translator because I don't speak English well, thanks for understanding
it's true that it takes quite a long time to calculate and perhaps 100 blocks is too much

In my opinion, these categories are not in the direction I want Brawl Stars Speedrunning to go. I think its better at its current state where people speedrun toward a trophy goal or finish a match as fast as they can. Additionally, it would be extremely difficult to track, which you mentioned.