About deleting erroneously registered bot visits, I found How to invalidate the past historical reports so they can be re-processed from the logs and used the GDPR tool to delete bot visits via a search for Resoution: 800x600. Adding “OS: Windows” or “Browser: Chrome” was not needed – it seems like the 800x600 is the signal.
I then used the InvalidateReports plugin (Option 1) to invalidate the data, but I could still see the visits … I could have waited for the hourly Cron-job (Note: See https://forum.matomo.org/t/problem-setting-up-cron-job-for-archiving/53403/7 ) to rebuild the data, but triggered it manually, and the bot visits are now deleted.
tldr;
- Delete bot visits with GDPR tool (Resoution: 800x600)
- Invalidate data with Invalidate Reports plugin
- Rebuild data manually, or wait for Cron