I'd add some more that are also important, but rarely mentioned.

Mandatory meal and rest breaks. PA does not require employers to offer any to employees over age 18. Many workers assume they have more rights than they really do. This is a prime example. Even many HR people don't know this. Most businesses provide some breaks, but varies with hospitality, restaurants, and convenience stores tending to be the worst.

Another one is requiring employers to pay out accrued vacation and personal time upon termination of employment. California and some other states require that, but not PA (unless a company has voluntarily stated otherwise in their employee handbook).

While on the topic of vacation, all employers should be required to provide 1 hour of paid vacation time per X number of hours worked. For example, 1 hour per 25 worked equaling 2 weeks paid or, less ideally, 1 hour per 50 worked equaling 1 week worth of paid vacation.

Points 4 and 5 will be distractions. Not saying they're not important, but are very difficult to define let alone getting buy-in even by other workers let alone businesses and the public-at large (voters). Best to focus on points 1-3.