You can create a usual paycheck, userkim-spellman.
Aside from creating the final paycheck, let's ensure that you reach out to our tax agencies if there are other requirements your needs to be taken action. Then, In QuickBooks Online, you can create a scheduled or unscheduled final paycheck.
You can select Create another paycheck if you've just created a paycheck and needs to create another one for the employee. Here's an article that will show you the steps for whichever type you want to create: Create final paychecks for terminated employees. After recording one, you can change the employee's status.
Keep me posted if you need more help. Take care!