32bit addon on 64bit Os

Do I assume correctly that a 32Bit addon will not run on a 64Bit OS?
I. e. there is no translation layer?
And that 32 Bit addons will not appear on the GUI of the 64bit OS, although being recognized as ADD ON?

Facts:
I have installed a new HomeAssistant (ver 9.4 with 64Bit) on a RASPI 4.
I tried to install the RaspberryMatic add-on, as described. When I add the the repository the log will count 2 new “add-ons” as expected and the GUI shows no change.
I did some research, and it seems that the RaspberryMatic is only available as 32bit, see “Switch to 64bit kernel+OS environment (x86_64, aarch64)”.
I would appreciate some feedback, before changing back to the 32bit Os. And in case my assumption is correct some feedback to other users may be helpful. I am happy to add logs / information, if the above is not clear.
Rudy

Case closed.
For reasons unknown to me the addons are now visible. After having spent 2 days trying to research this, before the post.