I also recently got a set of those. I've really been enjoying them for at the desk and on the go.

I am a hobbyist photographer. My files come off the SD card from the camera to a external SSD that I use with Lightroom. That drive and the Lightroom Catalog backups get synced to a local NAS that I'm running at home. The NAS gets regularly backed up to a drive that goes to another location. I have two drives for off-site backup so there is never a time when there isn't one off-site. I'd like to replace the off-site drive with cloud of some type. I was previously bandwidth limited but now that I'm not I need to do it.

I feel like I haven't figured out a good sharing solution yet. I usually just use Google Photos to create and album and share that with people. I used to use OwnCloud but I've moved away from that.

The challenge you have is that a device that meets your spec is going to have to decode the optical surround sound signal from the TV which means it is going to need a chip and support for the codecs such as Dolby Digital and DTS. That is going to drive up the price and why what you're seeing are AV receivers. Unfortunately you don't need a switch, you need a surround sound DAC and those are not very common.