How good is touch support for Ubuntu on a Rasperry Pi 4?

In the video of leepspvideo recorded two years ago, at 11 min in the video: But this video of The Byteman for Raspberry Pi 4: Ubuntu 22.04 LTS (Jammy Jellyfish) But this video recorded one year ago by U-Labs | Raspberry Pi, IT & Technikshows that under Ubuntu, applications open rather slow on the Raspberry …