CAT cable in the utility room - not crimped?

You always have to terminate, the advantage is rather that later, in case of any changes at the patch panel, you only have to replug.

Edit: regardless of that, I really find it a shame that an electrician doesn't point out that just having the bare cables is not enough.
I mean, most of those answering here know that. But to assume that as an electrician?
*shakes head*

I’m wondering if there are electricians who just bring power cables into the cabinet and then say, "Well, connecting wasn’t agreed on. You’ll manage."

Thanks, I already found Keystone more attractive anyway because you can basically work cable by cable and don’t end up holding a panel that’s already a tangled mess with 5 cables at some point. The argument about replacing it later is of course even better.

At the time when we had the construction meetings with them, the electrician unsolicitedly sent me a sample offer for patch panel, switch, and cabling, over 600€. Since back then I had no idea they would just leave the bare cables hanging from the wall, I found that ridiculously overpriced. At that time I assumed cables with connectors.
If the electrician had explained that to us during the meeting instead of just sending me an offer by email without prior discussion, I might even have accepted it.

Just watch a video on the assembly of a Keystone module on YT. That should clarify the differences.

I am just wondering if there are electricians who run power cables to the cabinet and then say "well, connecting it wasn't agreed upon. You'll manage on your own."

Considering the often found ITK qualification level of electricians (outdated half-knowledge is often putting it mildly), there is hardly a greater blessing than when the electrician only goes as far as he understands the topic.

here’s my little “construction.” And I had never dealt with Keystone modules before. First, I connected the access point, which was surprisingly easy and straightforward. Then the other CAT cables. I always checked nicely with a small TV with LAN if the internet, i.e. YouTube, was working. Two connections didn’t work. I thought maybe the electrician had wired the socket incorrectly. I had no choice but to open the Keystones again and re-terminate them. Then it worked. Probably something was swapped or there was no proper contact before.

so the result:

Very cool , that's roughly how I imagine it too. Are you happy with your little cabinet? I still don't quite know which one I should get.

Absolutely satisfied. It is a 10-inch cabinet. For a 19-inch one, the niche would not have been quite sufficient, as the heating valve is on the right. The switch is placed on an upside-down mounted shelf.

search for something like this on the big A:
10" shelf, front mounting, installation depth 160 mm, deep black (RAL9005)

And rotate the lower flat surface upwards.