how to convert raw to jpeg

Step 1 export the raw as jpeg, details are in this description

Export photos, videos, slideshows, and memories from Photos on Mac - Apple Support

Step 2 import these jpeg files, if needed

In Photos, choose File > Import. Select the photos or folder that you want to import, then click Review for Import. If you selected multiple photos or videos, select the photos or video that you want to import, then click Import [number] Selected or Import All.

Ralf

You don't have to. Every way you share the image except one produces a JPEG. Drag to the Desktop? Jpeg. Share to an email or other app? Jpeg. The only time you get the Raw is when you export an unmodified original.