Can Dreamweaver work on a 2021 iPad Pro?

No.  You need a desktop Mac or Windows PC. 

See the system requirements.

-- https://helpx.adobe.com/creative-cloud/system-requirements.html

If you really need a code editor for iPad, get one from the Apple Store.

Or use a browser-based editor like Codespaces.

-- https://github.com/features/codespaces

Hope that helps.

as a joke I would say, DW is already struggling to work on a computer, so on an iPad, I can't imagine the result... otherwise, no there is no Android nor IOs application for DW so far.

that said... I don't think you want to develop a site from an iPad!!! so what tasks in particular would you like to perform from a mobile device?