If you don't have flatpak installed yet, learn here how to install it.
Then you can install Inkscape by running the following command on the command line:
flatpak install flathub org.inkscape.Inkscape
To start the flatpak Inkscape installation, run:
flatpak run org.inkscape.Inkscape
Návod na instalaci
This release has further instructions for installation. It is highly recommended that you read the instructions to make sure your installation will work and work well on your computer.
Instructions Page