Such as if you were to beat Hornet there would be a small Hornet mask on the timeline.

I think that to progress, watch the match replay of a full match instead of a full session would be a rly good capture mode to add ; )

add highlight options for objective based events such as flag/hill captures, or medals such as Overkill or rarer medals such as Nuclear football and off the rack

so you know when you started and ended to boss fight

Useful markers for when the player enters duties, potentially also endpoints for when the player leaves duties.

Mythic+ dungeons in WoW! Or to make it easier, (I dont know how this works 100%), just whenever the player enters a base mythic dungeon?

Useful to record pvp

it would be cool to see all the high action moments in a long session like gtfo has