Logs shows what ADs did and anything a network refused, labelled by part (google, meta, networks, audiences, tracking, conversions, autopilot and so on), with the network's own error message. Routine calls are kept off the screen so real problems stand out.
Diagnostics reads everything live from your site: database tables, scheduled jobs, connections, tracking, consent and AI. If you contact support, press Copy For Support and paste it in.