You know better, I never have had an Android, but some time ago I've tried searching if you can get screen time data older than 2 months and came to conclusion you can't do it on Android either. But probably it's not an issue if you can automate export and perform it regularly.
It would've been cool to have accumulative screen time across all devices. But as iOS user I don't dream of it.
How did you use it in this trip? Did you chat in public groups? Have you used it to keep in contact with someone specific?