what it's like to live with as much foss software as possible

Router yes, actually router is running coreboot and tiano core with OpenWRT. Does still have proprietary microcode though, and WiFi firmware. All my WAPs also run OpenWRT. I don't have a modem, I have fiber. The ONT is probably running something proprietary but as far as I'm concerned that's ISP equipment, not mine. Phone...not quite. I tried...it is running an AOSP rom...but going to a full Linux phone never quite worked out. That being said I was originally referring to my laptop and desktop which make use of no proprietary software or drivers. I do go FOSS to the extreme as much as possible. I just haven't figured out the phone. I did try going f-droid only for a while but it made basic tasks on my phone substantially more difficult.