what the purpose of on board memory

I think the idea is to have less software using resources on your system while also providing an option to try and store layouts/bindings on the mouse so you dont need to install synapse on every computer you wanna plug the mouse into especially if temporary. Like say on your friends computer, or if you have two places where you live with 2 different computers maybe.

I have found them to really only be helpful for troubleshooting pc vs mouse issues.

For example some of the bugs in logitechs software can be isolated/fixed by switch from or to onboard memory profiles.

I also think i read somewhere that some specific use cases can also provide faster response or something from the device if you are running it off onboard but i cant pinpoint when or where i read that as it doesnt seem very applicable or make much sense either.

PS: I avoid the onboard memory stuff as ive never found it reliable or had much use forit, however i still do love the option for troubleshooting purposes.