I did the early-employee-recently-out-of-college thing a while back, they weren't able to raise nearly as much; my boss would've LOVED to have the money to retain me when I got a closer-to-market offer from another company.
You obviously need a strong and motivated team to build something great. But - in the current conditions - if you are unsure as a founder when the new round may come any increase to salaries may not be taking you to product market fit and a stable revenue stream.
Actually it's probably worth mentioning acquisitions as one of the things that's severely reduced the appeal of working for a startup. After failure the most common exit for a startup is acquisition. As an employee this almost always means you get zeroed out and founders regularly walk with 7 figure pay days (or higher). I know they exist but I've yet to meet an employee who made any money in an acquisition for under a billion.
No one will offer you any sort of protection for this scenario, why bother?