I applied online, and had two interviews (I believe the entire course would have included an assessment stage and a panel interview in addition to the screening interview and one with the direct manager).
Both interviews were fine in the sense that I could not think of any glaring mistakes, although I thought I had a better conversation with the screening one and did not quite click with the direct manager. Afterwards I was still interested in the job but also was not as excited.
I did not advance after the second interview and politely followed up, hoping for some/any feedback since on paper I thought it really seemed like a good fit. This is where the experience was disappointing, with absolutely no acknowledgement whatsoever. I completely respect if no feedback can be given for whatever reason, but after having such great communication throughout the process, this seemed like this it was not such a difficult ask.
They did generally follow the timeline outlined to me, though, so at least I did not have to wait weeks on end to know I was not advancing or that there was a delay, etc.