The Logicool G600t (Japanese ver. of Logitech G600) is compatible with English G Hub.
Hi all. Sorry if this has been known already. I tried searching for an answer all over the internet but couldn't find any, so I'm posting for those looking for a replacement for the G600 mouse.
The Logicool G600/G600t (Japanese version of the Logitech G600) is fully compatible with English G Hub. The customer service rep at Logitech also confirmed that it is compatible.
When I plugged the G600t into my PC, alongside my regular G600, G Hub recognized the G600t as just another G600 (screenshot below). My G600 settings were automatically applied to the G600t. I didn't have to do anything.