A:AnswerI’m pretty sure it will. As long as set up the proper folders for the PS4 to recognize. I saved files on a usb flash drive on a PS3 to transfer to another PS3. I’m pretty sure the process is similar. I bet you can find videos on YouTube for this.
A:AnswerIt should be but I don’t recommend 32g for the PlayStation 4. For a PlayStation 4, you need a hard drive that is 250gb or above. This ensures game content runs smoothly without any lag.
A:AnswerFor my understand, you may not transfer movies directly. However, you may transfer movies form Galaxy S9+ to PC and then transfer it from PC to the thumb drive.
A:AnswerMac and windows do NOT and never have used the same file format. In order to do what you are trying to do you will have to format the usb/eternal HDD to exfat which then can work with both operating systems. Other then that make sure both machines have programs that can open the file (pdf, jpg) etc