Raspberry Pi for Video Source

New to Raspberry Pi.

What I am doing now:
Laptop shows a slide show/video/other content. Content is either locally stored on laptop or, more often, in a browser based source like google drive. HDMI to one Cam Input on ATEM.

What I want to do:
RaspBerry Pi HDMI to ATEM. Content either on SD card in the Pi or accessed via a web browser.

I think it is as easy as HDMI from the Pi to the ATEM with the Pi configured to access the Internet and act as a direct replacement for the laptop.

Am I over thinking this?

i was used old rpi 2 with old system with mxplayer for easy playout .. But the are disabled mxplayer .. u need to use VLC .. it have web interface , so maybe u can try to use it .

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