Before you share your card
Five checks, two minutes.
Open your own card. The "Preview" button opens it as a visitor sees it. Read it on a phone, not on a laptop: that is where it will be read.
Tap every item. A phone number that opens the dialler, a WhatsApp that opens the right conversation, a link that does not 404. Broken items are almost always a copy-paste with a space in it.
Check your form. Send yourself a test submission, and look for it in "Contacts". If it does not arrive, your form is off, or the item was switched off.
Look at the top third. Photo, name, title, company. That is what decides whether someone scrolls at all.
Download your QR. From "QR Code". Keep the PNG somewhere you will find it: you will need it for a flyer or a slide sooner than you think.
Then share it once, to yourself, by the channel you use most. If the link looks right in that message, it will look right everywhere.