How do sales teams deal with fragmented/stale account info

I am a BDR and keep running into situations where useful account context exists, but it’s scattered everywhere.

Things like previous relationships with a contact, former champions moving companies, whether someone used your product at a previous company, old customer history, outdated contacts/titles, previous outreach, etc.

Between Salesforce, Outreach, LinkedIn, enrichment tools, other reps’ knowledge, etc., I usually end up piecing it together myself.

For people at larger sales orgs, does your company actually have a good way of maintaining this context, or is this just something reps learn to deal with?

And if you do have it solved, what tools/processes are you using?