Hi Slowie,
The Ecu will be manufactured by Delphi or Bosch, CFMOTO do not manufacture these units, they just buy them in bulk from fuel injection ECU manufacturers.
Establish, extract all the information from the label on the ECU i.e. manufacturer, Model number, series, type, year of manufacture, injection type. You will aslo get this information from your CFMOTO workshop manual.
Type this info into your browser and there will be alternative suppliers of these ECU's other than CFMOTO.
As for the 2021 ECU, I doubt very much if it will be thew same, injection manufactures update their hardware and software on a yearly basis to conform with legislation and emission issue requirements. Let alone the generic need to update and improve their products on offer every year.
All the best GMSAHFR