garbage advice lol
the software has useful features, like reconfiguring buttons on your mouse. however lately all of them got to be enshittified with a login requirement.
the real solution is to not buy their shit, or to keep buying used hardware for which decent software configurator is still available
I’ve fallen into this trap too a year ago or so. try if the Logitech Onboard Memory Manager is useful for any of your devices, it’s a totally offline program. you can get it from the page below, but if it’s been taken down check the archive.org, I think I have made an archive of the exe too
https://support.logi.com/hc/de/articles/6449584392215-Onboard-Memory-Manager