Maybe I'm nuts, but I absolutely love timesnapper (the non-LLM predecessor of Recall, but the same screenshot every few seconds concept).
I originally got it for it's main advertised function--making it easy to record hours for contract billing--but once I had it running I was hooked.
It's just incredibly useful to be able to pull up what you were doing at any given moment, or how you did a particular thing, a few months after the fact.
I haven't used Recall yet but hooking it up to a multimodal LLM seems like an obviously useful thing.