Using IDE on different machines and operating systems with the same license

You can run multiple personal licensed copies at the same time (like on laptop and desktop for remote debugging client/server apps) as long as you are the only user of your personal license.

The same is true for the commercial subscriptions with the additional requirement: your operating system username (login) must be the same on all the systems where you use the IDE.

However, if you use Floating License Server, a per-machine license model is applied. When a user runs JetBrains Toolbox products concurrently, for example, on Windows and macOS, it requires multiple licenses.