There is a V50 telegram group that is pretty active. Lots of info in there. Right now v20a is the latest version we know of for the Sprint V50 (Android 10 beta with January Security patch). You can install it pretty easily but downgrading is a little bit of a hassle and you need to downgrade to get any future updates. Hopefully Android 10 releases in the next few days or week (soon).
LG in general has almost no market share. It's a duopoly. I never see my S10 5G in the wild either though. But at least I got android 10 last week and the January update 2 days ago. Sent from my SM-G977P using Tapatalk