Have you tried the Home 5G system yet?

Verizon & T-Mobile have come out with a home WiFi that is 5G at the connection. It’s supposed to be the answer to disconnecting from Spectrum WiFi. I know I’m not using the proper terminology…I’m still learning. Are you willing to enlighten me on how this system will work with my old wireless computer??? IF you’ve signed up with either of these systems, who did you choose & WHY??? I don’t trust either company to give me the “honest” answer to my questions!!!