I hate the strategy of just taking every idea you hear and throwing it into a ticket. You just end up with this giant icebox of stuff you'll never do. If a big new prospect demands one of the ideas that's in the icebox be implemented immediately in order to close a deal, you're probably still not going to pull it out of the icebox, because you don't remember that it's there. Instead, you'll just create a new ticket for it, and eventually when going through the icebox, someone will go "hey, I think we built this already" and close as dupe.
Instead, I strongly prefer to have tickets that at least have some possibility of getting done in the short to medium term, and store other ideas elsewhere. Engineering keeps a list of tech debt that they'd like to address. PMs keep one list per project of possible improvements. For potential new features/products, they write PRDs but don't immediately turn them into a bunch of tickets.
Ultimately I think the giant backlog of stuff that mostly won't get addressed is a sign of weak PMs who are afraid to say no and like to fall back to the comfortable answer that is, "sounds interesting, I'll write a ticket for it."