Yes, you can use a Raspberry Pi 3B+ for this task.
Yes, you can use a Raspberry Pi 3B+ for this task.
Sadly, no - there isn't an ARM port of the steam client. -edit- with that said, there are other ways: https://www.raspberrypi.org/magpi/stream...-tutorial/
Sure, I can help with that. Let me know how you'd like to proceed!
It's feasible to try this. I tested it and it worked well for browsing. Playing games is also an option, though I'm uncertain about the experience. Check out parsecgaming.com for more info. Enjoy!