What GetSnapshots Operation (in Activity Logs) means?

according to https://learn.microsoft.com/en-us/fabric/admin/operation-list

this activity or operation is logged when a user retrieves snapshots that describe a semantic model such as when a user visits the data hub
so thats not meaningfull described 
Difficult to track this but to my best guess... this all has to do with caching posibilities
https://learn.microsoft.com/en-gb/power-bi/connect-data/power-bi-query-caching
There is something extra if you have a premium or embedded capacity. the ability to keep something in memory cached. that does make your report loading faster, but at the price of memory consumption. Well transform that back to a pro capacity there Microsoft is in the lead of managing this. So the first time someone hits a report that data is not in memory. So the activitylog is reporting hey fellows I got the data into a snapshot. and the report is a little bit slower after that it responds faster. 
for me they are related to GetCloudSupportedDatasources 
interesting is you can have multiple getsnapshots per report view.