The sticker bindi revolution was probably the last major shift in bindi style. And they are still around though you are more likely to find women wearing the “neutral” red/maroon/black round bindis on an everyday basis. And often no bindi at all.
One thing that is different in the last few odd years is bindis of a contrasting colour to the ensemble – this has also been a bit of a theme with blouses (see for .g. X and X). Blue seems to be a favourite though green had a pop culture moment and purple is also around.
And not exactly a contrast bindi, but impressively it is blue kumkum.
Pic sources: Unfair and Lovely, Ankita Sharma, Who Wore What When, Taapsee Pannu.
Oh yes vaseline!!!! Yes would be fun if they came back.