Either i586 or x86-64 MC should work on TW. If you're upgrading from an existing MC, I recommend backing up the library. At this point, you could also remove the existing MC version if so desired. After the install for MC22, you can then restore the library and restart MC to get all of your settings and zone setups back.
The easiest way to get going is to use the "alien" utility to convert the ".deb" to a RPM package. Using this method, you can easily install/remove different MC builds at your convenience and if you have a local folder set up as a repo, MC can be managed easily with the Yast software manager.
- Find and install alien for your openSUSE version (https://software.opensuse.org/package/alien)
- Download the MC .deb
- From the .deb location, run sudo alien -r --scripts "MediaCenter-22.0.X.deb" where X is the MC build. This will take a minute or so, the resultant RPM will be in the same folder.
- Install the RPM sudo zypper in "mediacenter22-22.0.X.i386.rpm" where X is the MC build.
Optionally, if you have a local folder set up as a repo, copy the resultant RPM to that folder and run "sudo zypper up" and it should get picked up to install.