I can't think of anything beyond a month is need to search for. And I'm definitely not interested in having it just in case. If it's important I'll write it down.
I'm also not a social media user.
How many people have been caught out over shit they've said decades ago that is now not fashionable to say?
What parts of your old chat histories can get you in trouble if the police got hold of your phone?
I mean... none of mine, that's for sure, nor am I expecting to get in trouble for anything I've said in the past. I don't customarily do things I wouldn't be okay with somebody finding out about, and if did find something out and decided to become angry at me, that's on them for being a shitty person and doesn't really bother me. Nor am I expecting anyone to be looking at my history other than me anyway; that's why my phone has a passcode.