Fusion 13 has a free non-commercial use license. If it's commercial then you should pay for an upgrade.
We do expect an upgrade, with a new tech preview, coming sometime soon, but it's a coin flip if it'll be a free upgrade when it's released or paid.
You can build a windows 11 VM and not activate it, but your Windows 10 key should activate it.
Oh, and note, there are no shared folders yet (we expect that in the tech preview) so to extract the files, use network sharing or attach an EXFat formatted thumb drive or other hard drive directly to the VM.
