Yes BUT… suppose you file a provisional patent, and do a slight pivot/change in how you do things. Then the provisional patent might not apply, or might be too restrictive. This is where a lawyer can help. Still, this is a strategy that lawyers understand, and it can still be a quick and cheap way to cover your ass. And you can say “Patent Pending”.
Do you know if there are startups that specialize in helping startups go through this ? I got one reference below that I am going to look into more. If your reference can be shared, pls do