As a former work coach, having worked for the DWP from 2009-2022, I have some empathy with anyone who has had a negative experience with job centres.
However, “job centre”, is now a misnomer. Back in the day (pre computerisation) job centres actually liaised directly with Employers, all local boards were up on a board and the job seeker looked at all the jobs, selected those they liked and the job centre arranged the interviews.
Since 90% of jobs are now online, with online applications, this no longer applies and the “work coach” role is to identify barriers to work, ensure the person is looking for work, highlight any training opportunities, explain any available funding (now very little), all in their 10 minute slot which most work coaches are instructed to book appointments, unless it’s an initial claim.
It’s been a broken, flawed system for many years.