Installing Steam

[Ze_Mind]

When I go to install Steam, it wants to update, so I do so.

Then I get this error:

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.........
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libc6 is already the newest version (2.38-13).
libegl1 is already the newest version (1.7.0-1+b1).
libegl1 set to manually installed.
libgl1 is already the newest version (1.7.0-1+b1).
libgl1 set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libreoffice-common : Breaks: libreoffice-core (< 4:24.2~) but 4:7.4.5-3 is to be installed
 xdg-desktop-portal-kde : Depends: kio but it is not going to be installed
                          Depends: libkf5iconthemes5 (>= 5.102.0~) but it is not going to be installed
                          Depends: libkf5kiocore5 (>= 5.102.0~) but it is not going to be installed
                          Depends: libkf5kiofilewidgets5 (>= 5.102.0~) but it is not going to be installed
                          Depends: libkf5kiogui5 (>= 5.102.0~) but it is not going to be installed
                          Depends: libkf5kiowidgets5 (>= 5.102.0~) but it is not going to be installed
                          Depends: libkf5service-bin but it is not going to be installed
                          Depends: libkf5service5 (>= 5.102.0) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
I never had this before..