What it means for your invitation
The page in front of your registrants should match the format, or people arrive with the wrong expectation. A webinar page earns its keep on the agenda and the speaker: what is covered, in what order, for how long, and who is talking. A workshop page has to say more about the participant than the presenter, because the honest question is not "what will I hear" but "what will I do, and what must I bring". Put the exercises, the group size and the preparation on the page itself rather than leaving them to a follow-up email.
Worth saying plainly, since we build the registration side and not the presentation side: My Joyfullday offers exactly these two labels, webinar and workshop, and nothing between them. We do not host your video, run your polls, moderate a chat, or take payment. What we do is collect the name and email on a public page, ask your own extra questions if you want them, enforce the number of seats you publish, hold a waitlist when the room fills, and send each person their own access link so the meeting address is not handed to whoever finds the page. The choice of format changes your agenda and your preparation notes; the machinery of getting people in and knowing who came stays the same.