If I buy the game, will there come a time where the itch.io version stops receiving updates and I'll be forced to use Steam?

I'm concerned about this because for the past 3 weeks, Valve have been denying me access to my account (not a ban) and support have been directly refusing to help (and suggeting that I harm myself in place of providing support). I've lost what little trust I had left in the platform, and I've seen games disappear from itch.io before when the devs are moving their focus to Steam. I'm hoping this won't end up being the case here, so I can feel safer buying FTW.

The game will be always be updated on itch so don't worry! 

Sometimes it might take one day or so to be updated but that's it. 

Thanks

Just bumping this to mention that at this point, YES, you DO need Steam to play an even remotely up-to-date version after launch. There's a pre-1.0 build on here, and a broken version that can't be played, while Steam's version of the game is 2 updates ahead of the version that doesn't even work here. Not having a positive experience with this any more.