I suspect your perspective is based on using well-established open source projects that have a long history and are popular enough to have reached critical mass

I suspect your perspective is based on using well-established open source projects that have a long history and are popular enough to have reached critical mass. The reality is that most open source projects are playing catch-up, especially in the hardware space. Linux still has many issues with newer GPU drivers (binary blobs instead of actually OSS ones), and even a semi-popular project like OpenWRT doesn’t have WiFi 6E support, even though devices have been out for a while.