below are the meaning of the serice modes:

Remote: It means you can do the job without going to the physical location.You can work from home and no need to go to the office.

Onsite: Means your service require your phyisical appearance to the location. You go to the client’s office or company to do the job.

Hybrid: You mix it up, working some times at home and some times at the office.

Both Hybrid and Onsite: You can do both, working some times at home and some times at the office. If your service requires it.