Need-help-understandig-NI-linux-repositories-2

Well, it's the second time I need to write this post, because after some hours of writing the original one https://forums.ni.com/t5/LabVIEW/Need-help-understandig-NI-linux-repositories/td-p/4411692 seems like someone has deleted it out of the blue for no apparent reason. I value my time so at least I would expect a reason onto why it has been deleted as it was properly written and a legit doubt about linux runtime engine installation. Who knows.

So as I didn't made a backup the first time I will start again trying to simplify it as much as possible.

1. When you want to install runtime engine for labview you go to the official web, select the OS (in this case linux) and the year and that's it.
2. It downloads a zip file, inside it there are some linux install files (.deb and .rpm). I install the one that belongs to my linux distribution and I thought that that.
3. But no, in fact it installs a linux repository: https://download.ni.com/ni-linux-desktop/LabVIEW/2024/Q3/f1/pro/rpm/ni-labview-2024/lp155
4. From that repository you can install labview runtime engine, but it's for a outdated linux version (lp155).
5. Also it's like a "hidden" repository, since inside https://download.ni.com/ni-linux-desktop/ there is no LabVIEW folder, but browsing the actual public folders you can find things like: https://download.ni.com/#ni-linux-desktop/2024/Q4/rpm/ni/lp156/ that are for the up to date version (lp156)
6. The final point is that even I can manually download a runtime engine file from there, I can't add the repository to my system since it doesn't have valid metadata

So my questions are:

1. There is a linux lp156 version of the runtime engine repository that I can't find in the "official" folders because they are hidden?
2. Are the public lp156 repositories like this or this intended to be used? Why I can't add them? It's a me problem or a general problem?
3. Are the runtime engines inside the lp156 repositories stable and intended to be used?
4. Is using the "official" runtime engine designed for lp155 into lp156 actually asking for trouble or it should work just as fine?

Thanks for your time

PD: If this post annoys someone, please, instead of simply silently deleting it notify me what's the actual issue with it and let me know how can I get my help. Thanks.