Here’s how to switch to Signal groups from WhatsApp groups as presented by the Signal application developers who have published a very easy method, allowing easy movement and in a few steps :
After installing the app on your phone, open it, then tap the three dots in the top right corner of the app screen. From the menu that appears, click Create a Group. Give a name to the created group and add required contacts.
Now open the group you created, then tap the three dots on the top right of the app screen. From the menu that appears, click on the “Settings” option.
In the window that appears, click on the “Group Link” option.
Toggle the button next to the group link option on.
In the same window, after switching the button, click on the Share option below.
In WhatsApp, open the group you want and paste the link you copied into the text box.
Now anyone with access to this link can directly join the group you created in Signal.