Hello,
Options+ is a good app with better UI, UX and performance but honestly logi needs to supports Linux Systems. Its almost 2022 and so sad to see no support on Linux. I have Windows and Linux machines and I can not use my MX master 3 and MX keys product with full feature like flow or button customization. There are lots of people like me. Please work on it and we really will be happy to see official support on linux from logi.
Thanks. Regards.