You have to be careful with the Roku search, especially with a common title like that. It's not unusual for different movies to get mixed up. From other search services like Reelgood and JustWatch, Paramount+ is the only streaming, outside of buy/rent services.
Never heard of FreebieTV.
Here is a list of just what was found on Reelgood for "War of the worlds".
https://reelgood.com/search?q=war%20of%20the%20worlds