The volume of helpdesk tickets large enterprises deal with is very easily and vastly underestimated. If you can even route 30% away from the central triage with 90+% accuracy and drop everything else back to the central triage... you suddenly safe 2 FTEs in that spot in some places. And increase customer satisfaction for most of those tickets because they get resolved faster.
Or, as much as people hate it, chatbots as a customer front. Yes, everyone here as an expert in a lot of tech has had terrible experiences with chatbots. Please mark your hate with the word "Lemon" in the comments. But decently implemented chatbots with a few systems behind them can resolve staggering amounts of simple problems from non-techies without human interaction from the company deploying them. It remains important to eventually escalate to humans - including the history from all of these interactions to avoid frustrations, sure.
Or, ticket/request preprocessing. Remember how spelling that 10 digit account number to a call center agent hard of hearing sucks? Those 4 retries because of you not using a better way to communicate that number also costs the company. Now, you can push a few of these retries into an AI system. If you mail them, an AI system can try to extract information like account numbers, intent, start of the problem, problem descriptions and such into dedicated fields to make the support agents faster.
Companies are certainly overdoing it at the moment, I'm not denying that. But a lot of the support/helpdesk pre-screening can be automated with current AI/ML capabilities very decently. Especially if you learn to recognize and navigate it.