The main difference between Mac and PC keyboards is the layout and the operating system associated with each type of keyboard. Mac keyboards typically have an Apple logo on them and are specifically designed for Mac operating systems. PC keyboards are designed for Windows and have a Windows logo on them. In terms of layout, Mac keyboards usually have keys in different places than PC keyboards. For example, Mac keyboards usually have the Command and Option keys, while PC keyboards usually have the Windows and Alt keys. You should also be aware that some keys may have different functions depending on the operating system you are using. For example, the Command key may act as the Control key on a PC.
If you are trying to switch between Mac and PC keyboards, you should first familiarize yourself with the different layouts and key functions associated with each type of keyboard. You should also look into getting an adapter or a special keyboard designed to work with both Mac and PC operating systems.