I’m familiar with Wire, and long story short, if you’re already comfortable with Signal then there’s no reason to switch over.

I was going to say that its benefits include allowing you to use it from a desktop first, but it seems they have pivoted towards businesses now, and it’s not so clear how to make a personal account (or if you can).

Edit: looking for personal accounts on their Help page reveals instructions for deleting it or turning it into a Team account. Not promising.