Yeah, looks like we both bought the same one: https://www.amazon.com/gp/product/B07QBVGVL6 (clean link).

This is what I upgraded to when I swapped to the G4.

Endurance Pro 24V 40VA Thermostat Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell https://www.amazon.com/dp/B07QBVGVL6/ref=cm_sw_r_cp_api_glt_fabc_PRS0JGS70NN3KBZPSACV?_encoding=UTF8&psc=1

I already had an existing mechanical chime in place. Many out there will work.