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Glass Antenna Turns Windows Into 5G Base Stations - IEEE Spectrum
(spectrum.ieee.org)
This is a most excellent place for technology news and articles.
Midband 5G seriously outperforms LTE in my experience. And as radios have matured battery drain has gotten significantly better (which is exactly what happened with LTE radios when we all left HSPA+ behind).
When I had an older 5G phone without midband signal and an early radio, I just left the 5G off. But now I get annoyed if I only have LTE.