There is very little room for EU telcos to do any sort of inspection of packets, beyond maybe identifying if its streaming traffic or regular traffic (there are some subscriptions which give you free streaming traffic). Storing personal information is a big no-no, and anyone can at any time request a dump of all identifyable information a telco has about you. While I understand that private relay will give telcos less actional information, its not that much to work with to begin with.