Does anyone use Virtual Table tops at all?

I am curious, i am a solo adventure writer and ive published like I dunno 20 or more on Drivethrough rpg and i have pretty decent sales, im not putting a link to anything because this is not a promotional post. I am just asking, does anyone use VTTs for this at all? is that mostly a multiplayer thing? should i be supporting that/ would anyone benifit from a Ultra light phone based offline VTT designed for solo play?