New information about current features regularly appears via WABetaInfo, which Meta for WhatsApp tests via its beta versions. In the current beta 2.22.9.8, a new variant for the profile sharing menu can now be found.
So far, a small QR code symbol is still emblazoned in the settings of WhatsApp, via which you can open a corresponding code and share it with other users in order to offer your entire WhatsApp profile as a contact almost directly.
In the above screen, you can see that instead, a share icon appears there, via which you can access the share menu accordingly.
There you can either create a link to share your profile and then share it everywhere from the cache or you can share the link directly from the menu in WhatsApp. I would probably never have noticed the innovation because sharing my profile has simply never happened to me as a normal user in this way.