"Yes"  wrote

| My intention would be to put the Pi 4 next to my Roku TV, run a cable
| to the Pi 4 from my internet router and connect the Pi 4 to the TV
| using HDMI.  The TV would act as both monitor and as sound output.  I
| would use a browser, preferably Firefox, to surf the net using the Pi
| 4.  I intend to keep it isolated as much as possible from my primary pc.
|

  I'm doing exactly that, minus the Roku. It works
fine. I got a wireless USB keyboard and mouse, which
I set up on a tray. So when I switch to the Pi4 on
the TV I get the Linux desktop. I also set up a
custom Chrome using drivers someone came up with,
so that I can stream movies that use Widevine DRM,
such as Hoopla.

 
https://blog.vpetkov.net/2019/07/12/netflix-and-spotify-on-a-raspberry-pi-4-wit
h-latest-default-chromium/

 Widevine is a Google invention that they seem to want
to control. So there's no version for ARM Chrome or for
Firefox. But the man at the link above worked it out.

  It all works great. You don't need the customization
for Youtube. Firefox works. With a second TV I've done
similar with a Win7 box. I play a movie or video on Win7
and pipe it via HDMI as a second monitor.

 Zoom functions? I don't know. But in general the Pi4
acts like any PC. I got it mainly because it allows me
to have a computer the size of a deck of cards hooked
into the TV. And it's very cheap compared to providing
a dedicated PC for the job.

--- SoupGate-Win32 v1.05