How to keep history from auto-deleting?

I have been trying to get a handle on Brave’s desktop history settings for some time.

For some reason my history is being automatically deleted past a set time frame - roughly 90 days - and there does not appear to be any setting to keep it indefinitely or specify an unlimited amount of storage that can be devoted for it. In other browsers (ie Firefox) I’ve been able to set this in the history settings. Does anyone know how to change this?

Additionally, Is it possible to sync history from mobile and desktop devices?