looking for a smartphone with 120Hz display, i looked for razor phone 2 on ebay, and got one with cracked backplate for quite good price.
i installed moonlight app and connected with pc via USB-C cable and entered pin to connect nvidia experience software with the smartphones moonlight app.
now i can
– set PC to 90Hz / 120Hz, and
– set 90Hz or 120Hz on razor phone 2 , according to pc settings
– and set moonlight app on the smartphone to go 90/120Hz
finally i have a great working gamestream over USB with stable frames and no blur effects.
actually there are more than one smartphone on the market making 120Hz
https://www.techstage.de/suche/?q=120+hz
getting a mobile device supporting 120Hz , used one or a new one, for a „small“ price is atually reality.
https://www.gsmarena.com/razer_phone_2-9363.php
https://www.techstage.de/test/Razer-Phone-2-im-Test-Gaming-Smartphone-mit-120-Hz-Display-4250698.html