WhatsApp has recently introduced a feature called 'Messenger Room', which allows group video calls with up to fifty people at a time, and works similar to Zoom or Google Meet. Users can create a room for a video call via their Messenger app or through their website on a smartphone or PC.
This invite link can then be shared with one's WhatsApp contacts or groups. They will not be required to have a Facebook account or the Messenger app to access the room through the invite link.
However, those rushing to post this in WhatsApp groups must note that this feature will only work in groups with more than five members.