How to trace the user's full path in Google Analyticscs or another service?

Question

Google Analytics

Faced with the need to track the full path of the user:
- the keyword with which the user came from the search
- the full referral link if the user came as a referral
- track the moment of registration
- log all user actions on the site
Main problems:
- previous sessions are not tied to user_id after registration, those. if the user came for the first time in a different session - the search query is not tracked - the
analytics truncates the link parameters and it is often impossible to establish the exact source when moving from another site
- in general, there is no normal interface for displaying analytics with reference to a specific user on our site
What are the solutions to this problem? Maybe third-party analytics services? But will they know the search queries?

Answer 1

1) custom variables and measuremet protocol via cookies
2) full referrers add + remember that more and more httpS i.e. there will be no details + parameters in the URL on controlled sites
3) look at Gemius, but also not a panacea
search queries come from referrers, so everyone "knows" them