Actually using a community port SFOS will make development easier - the device just needs to ship with non-GMS certified Android and done. But is the community SFOS really what we want? IMHO it's quite far from a true Linux OS, and has too many components controlled by Jolla. On the other hand, GPD Win doesn't have any Cellular functionality, which will make a huge difference, regarding Hardware (Soc, modem, RF, Antenna) and software (certification, tuning, adaptation) so it's not really comparable. For that price if you want cellular network, the specs will be much lower.