GDPR: Disadvantages of deleting old raw data...?

Hi,
to minimize the amount of personal data stored in Matomo we are going to set the continous deletion of raw data to 180 days.
I am a bit worried that we thereby will lose older data for:Pageviews & Custom reports

Is it really true that we will only lose old data for the following objects:
-Transitions reports
-Unique visitors metrics
-new (and updated?) custom reports
-Roll-up reporting

→ Unfortunately, you are right, you won’t be able to use transition reports on date where raw data has been removed.

→ It depends on the period on which the unique visitor metric is calculated:

→ Yes, you won’t be able to archive data for periods where raw data have been deleted

→ The same as previously, as roll-up is made of other sub-reports… If you don’t need to re-generate reports on previously deleted data, then no problem!