Line that is thin at both the start and the end?

[charred storm]

hello emilia enjoyer, have you tried turning on pen pressure for brush density in the brush settings? that might help.

[errant thistle]

There's a fadding option in the brush settings so just increases that

The first is without the setting turned on and the second is after turning it on

Idk which program you're using but this is where it is in ibis paint