GeoGebra
Also on WindowsInteractive maths for graphs, geometry and algebra.
Installs from Flathub.
Good news: GeoGebra runs on Linux. It's the same app you use on Windows, and TuxPick installs it for you from Flathub.
Install GeoGebra with TuxPickIt works on Ubuntu 22.04 and 24.04, and on systems built on them like Zorin OS and Pop!_OS.