After spending more than a week doing research on what new phone to purchase I found good information of the FCC's website.
Additional research and finding the same answer over and over again 4G LTE (Long Term Evolution) is good for at least another 10 years.
Android 13 is the current version at this time and some of those phones that are 5G are pretty pricey.
5G FAQs
Cellular networks are getting an upgrade with the arrival of fifth generation, or "5G," technology. As with previous generations, consumers can expect new applications and improved user experiences.
www.fcc.gov
Additional research and finding the same answer over and over again 4G LTE (Long Term Evolution) is good for at least another 10 years.
4G to 5G: How Long Will 4G LTE Be Available?
When selecting technology for IoT deployments, enterprises need to know how long 4G LTE will be available, whether 5G will make 4G obsolete, and how to plan their investment. The answer is that there will be a long period of time, probably at least a decade, when 4G and 5G will co-exist.
www.digi.com
Android 13 is the current version at this time and some of those phones that are 5G are pretty pricey.