As someone whos job is support more than SWE, I agree with this.

I've had to work in systems where events didn't share correlation IDs, I had to go in and filter entries down to microseconds to get a small enough number of entries that I could trace what actually happened between a set of services.

From what I've seen in the enterprise software side of the world is a lot of companies are particularly bad at SRE and there isn't a great amount of standardization.

Top 20 company globally by revenue

Enterprise app observability is purely a responsibility of each individual application/project manager. There is virtually no standardization or even shared infra, a team just stuffing plaintext logs into an unconfigured elasticsearch instance is probably above median already. There is no visibility for anything across departments and more often that not, not even across apps in a department.