Are there any startups that offer revenue sharing so you don’t have to rely on the mythical exit?
Pre-IPO the venture is likely not profitable, so you'd be getting a share of zero. Companies that are VC-backed are going to be held to an expectation of a big payoff, and will be in general discouraged from offering incentives that uncouple employee incentives from an exit. If I understand this right, it's part of why founders have started to be allowed to sell some of their vested shares at funding events, it gives…
Salespeople and sales partners are often compensated with a sales based commission, which is a revenue sharing scheme. It's common and expected, and practiced everywhere there's deal flow.
Technical people can rarely prove "ownership" of revenue, so they can't leverage that in negotiation and are left with "general" ownership through options or RSUs or whatever. There's nothing inherent or natural (or unnatural) about it. If money flows through you, you can usually demand to keep some of it. If it doesn't, you usually can't.