What do you use as the “internal admin UI”?

I've been building products for many years and, most of the time, my "admin UI" would be some SQL GUI (currently Adminer with a custom plugin).
That's what I'd use to resolve support cases, change some data for the customers when it's absent from the real UI, etc.

Usually, there's just no time to build internal admin apps when you're a solo founder or a small team.

However, I'm not really happy with this way of doing things. There's no "global search", no place to attach notes, and often it's hard to jump to related records (e.g. client -> client's transactions) quickly.

As I'd run the SQL GUI locally, it's always hard to share links to some records with my team, other than in the form of screenshots.

The list of problems goes on and on.

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Hence it prompted this question. What do you use? How do you debug data issues? How do you help customers? How do you share links (whatever form they take) to data with your team and collaborate?