GPS performance on Pixel 9a with GrapheneOS?

Thinking of getting a Pixel 9a to run GrapheneOS. I rely on GPS a lot, how well does GPS perform on GrapheneOS in real-world use?

Also, does the 9a actually support dual-band GNSS, and if so, does GrapheneOS take full advantage of it? I’ve seen conflicting info in other threads. (here)

Anyone here using a 9a on GrapheneOS who can share their experience?