For background, I've got 3 pairs of wheels set up tubless. MTB 29x2.3" and 2 gravel 700x44c and 70038c. All currently using Muc-Off sealant from a couple of years ago when there was only one.

I want to get more sealant but they only seem to have MTB and Gravel sealant now, and I don't want to mess about with different ones in different tires.

MTB claims to be OK to 60psi and fix 6mm holes, Gravel good to 80psi and 7mm holes, which implies they are different. Does anyone know why? I'm assuming I'll be fine just using the gravel sealant in all 3?