Thank you so much! Off to a new error message!
It now says that it can’t download the key file because there is no such file or directory:
sudo wget -O- <https://download.owncloud.com/desktop/ownCloud/stable/latest/linux/Ubuntu_22.04/Release.key> gpg --dearmor | sudo tee /usr/share/keyrings/owncloud_archive-keyring.key
bash: https://download.owncloud.com/desktop/ownCloud/stable/latest/linux/Ubuntu_22.04/Release.key: Datei oder Verzeichnis nicht gefunden
Which I find very weird because the url is the one I can open in my browser and successfully downloaded the keyfile from by hand. What do I do?
I want to add that I am barely understanding what I’m doing and following the instructions to my best ability.