Windows 10

Hello!
Does anyone know an application that displays handwriting in an application just like in the link below?

Limite de functii clasa 11 caz nederminare 0 pe 0 infinit laterale Exercitii(Invata Matematica Usor) - YouTube

I somehow try to write with a pen on a device and the handwriting is inserted in the application.I said above, just like in the video on Youtube

That looks to be a version of the OneNote App.

For a writing device, a touchscreen Laptop or a tablet on which to use a pen/stylus.

There is the OneNote App from the MS Store, and versions of MS Office have a desktop version of OneNote.
There are other alternatives.