Record tracking pings independently of any solution and figure things out later, a 1x1 GIF can absorb an unlimited number of query strings, and S3 storage for log files is extremely economical. It doesn't matter which analytics solution you end up with, you'll always be throwing away data. IIRC even GA enterprise doesn't allowing pulling the original click log back out of it, only some form of sampling or another. Put a 1x1 GIF in an S3 bucket, create a CloudFront distribution and enable logging for it into another bucket. Tada, unlimited scale achieved for pennies.
Matomo and GA's trackers both allow sending the query to a URL of your choice. Treat the analytics system as an index over the logs, rather than treating the logs as an auxiliary artefact of the analytics system
Matomo and GA's trackers both allow sending the query to a URL of your choice. Treat the analytics system as an index over the logs, rather than treating the logs as an auxiliary artefact of the analytics system