If you can get funded without an MVP that has traction, please share your secret. ;) It's pretty much the only thing these days.
The article is good, Valeriia. Thanks for sharing. Lots of good advice in there.
My only add-on is to work backwards from the P&L goals you want to show to investors (be it revenue, user, etc.) and back that into the feature priorities for the MVP.
And don't forget marketing (the scrappy kind, not media buys). You'll need to get those users with paid media at first most likely. Budget for it.