In marketing and transactional emails I send to Gmail address,
I would like to include a link, clicking on which adds my address to the recipient's contacts.
I have read In Gmail, how do I create a contact from a recipient of an email? but that doesn't help.
Describing the process to the recipient is more complicated and fraught, e.g. on desktop Gmail, one needs to hover on the sender name, then click on "more info", then click "add to contact icon" in the opened section. Different way on mobile. So if I could generate a link that they can just click to add is the way I'd like to go, if at all possible.