You can install Plex on your mobile device and toggle the “share media from this device” setting. Otherwise, a steam deck would have everything an RPI has plus a GPU and a touch screen. Since there are two radios (2 and 5Ghz) on the device, you should be able to set it up as a bridge device, but I’ve not tried this personally.
a variety of independent news sources.
Wikipedia is notoriously susceptible to bias when it comes to history and politics and has a noted left center bias (according to researchers at Harvard, not my words).
https://en.m.wikipedia.org/wiki/Ideological_bias_on_Wikipedia
I’m not saying it’s a terrible sources but it definitely should not be the last stop and anything controversial (or the lack thereof) isn’t a meaningful indicator of whether or not something is actually true. Note the numerous examples of historical revisionism in the linked article.