If satisfied you can optionally donate to the Ubuntu project to help fund further development. There are no product keys or activation mechanisms which are commonly found in commercial products such as Windows. Ubuntu is open source software meaning you can download, install and use it without any payment.
In the vast majority of cases (unless your device is absolutely bleeding edge) all the required drivers will be inbuilt into the Linux Kernel or obtained via Ubuntu Software Updates. Ubuntu is the Linux distribution that has the most mainstream support from chip manufacturers such as Intel, AMD and NVIDIA and OEMs such as Dell and Lenovo.
Installation of Ubuntu 20.04 LTS on a Dell PC with a UEFI BIOS, Secure Boot and Machine Owner Key (MOK)
