I can just say, that for 9 months Netatmo Doorbell and Face++ do not work ideally but Athom promised to fix it (you first get noise only, then the Doorbell picture, so there is delay on processing the event).
As for Eufy Doorbell, seems there is still ghost ring problem that I know never happened to me on Netatmo Doorbell (search for EUFY ghost ring). However, to your question, I believe there is image tag, but better to ask directly in the thread - [APP][Pro] Eufy Security - #5031 by martijnpoppen, developer is very supportive there but maybe someone from community will confirm as well.
