Yes, it is only the fee and bonus on the 1099NEC. Reimbursements are not included.
I can confirm this since I have an Excel spreadsheet that details a month by month fee, bonus and reimbursement for each shop that I perform. The shops are listed by their address and date performed. Each spreadsheet is separated by the MSC.
Fairly simple and informative. Nevertheless, you must religiously enter that data. After I file the reports for the shops I performed for the day, I then enter the information on the spreadsheet.