All SRE type work. Where it specifically shines is whenever you need to dig deep into linux kernel specifics, networking specifics, code in different languages to handle issues (Rust (which I don't know), Go, Python, Bash, etc...), All sorts of error messages it knows so often what precisely needs to be done to resolve, using and configuring graphing, database, TSDB type queries, formulating a clever tcpdump query for a particular scenario, etc...

Google Used to be able to handle a lot of the non-procedural questions - but somewhere in circa 2022/2023 something started happening to it's results and I started getting back mostly SEO churn, to the point I was going back to using manuals and having to dig in and learn the fundamentals on a lot of things - which is unsustainable if you are touching 30-50 different technology stacks.

Chat changed all that - I can now go 3-5 levels deep in some stack, ask some incredibly nuanced question, get a reasonable answer that points me in the right direction, close off the issue and then move onto the next one.