Does booking here give you a pass to Yosemite National Park or do you need to make a separate reservation?

You need to make a separate reservation on Recreation.gov

You need to make a reservation thru recreation.gov the hotel does not give you a pass

You definitely need a separate reservation. You will need to arrive at the park on the day of your reservation but it is good for 7 days

You can also take the YARTS bus into the park.