How can I cite thoughts in people's heads? Their opinions on why they switched? Apple did a series of commercials about switching to Macs and cited the problems

How can I cite thoughts in people's heads? Their opinions on why they switched? Apple did a series of commercials about switching to Macs and cited the problems in Windows. The FOSS community has been promoting GNU/Linux as an alternative to Windows for a long time now. This is common sense stuff that I shouldn't have to find a news media source on, because the news media doesn't cover that sort of stuff. Most business software is written for Windows, some businesses develop their own custom apps or use Excel and MS-Office. So it isn't easy to migrate from Windows to GNU/Linux for them. I know this from experience as I worked at places like that. It is stuff that the news media won't report on, the business lock-in and when you Google Windows business lock in you get Windows apps for Business results so you can't find anything about the lock-in. But back on topic ReactOS doesn't run the business apps a lot of companies rely on, so it isn't a good alternative to Windows yet for them. ReactOS is for hobbyists right now because it is still in the alpha stage and not ready for Prime Time yet. Edit: Typo