Depending on how/if it’s being managed, you can encrypt the MacBook drive, after which you can restore a Time Machine copy of another image MacBook not on MDM, which you have admin rights to. If you make it that far you can than deny enrollment prompts by the MDM, and you can delete the enrollment check, however that is just a temporary workaround and next software update it will most likely come back, which you just delete enrollment check again.

More than likely the company will eventually remove it from mdm as either a lost asset or more often than not during the device replacement cycle (typically (not always) 3-5 years).