LibreOffice is a powerful office suite and the successor to OpenOffice 5.24 sudo apt install kubuntu-desktop 21.10

Plasma 5.24 Plasma, Plasma:
https://kde.org/pl/announcements/plasma/5/5.24.0/
Plasma 21.10
Plasma.
Plasma:

sudo add-apt-repository ppa:kubuntu-ppa/backports

1	sudo add-apt-repository ppa:kubuntu-ppa/backports

Plasma:

sudo apt upgrade

1	sudo apt upgrade

Plasma:

sudo apt install kubuntu-desktop

1	sudo apt install kubuntu-desktop

sudo apt install kubuntu-desktop.