When it comes to realtime guarantees, bare metal code on a dedicated IC or MCU is by definition better than anything running on a general purpose OS on a genera

When it comes to realtime guarantees, bare metal code on a dedicated IC or MCU is by definition better than anything running on a general purpose OS on a general purpose CPU. Even if you tune the hell out of it, the latter will have more room for bugs, edge cases, drift, delayed powerup, supply chain idiosyncracies, etc. FYI GNSS processing chips cost $1.30 these days. https://www.lcsc.com/datasheet/C3037611.pdf https://www.lcsc.com/datasheet/C3037611.pdf