@skyebend, the Samsung S7 SM-G930F isn’t a bad buy. It’s still a very good Android smartphone.
The migration from e-0.7-n (7-nougat) to /e/ OS oreo 8.0.0 is currently being → tested. So it is only a matter of (short) time. Why not migrate to /e/ OS 9-pie immediately, no idea.
My temporary solution for the Galaxy S7 / S7 Edge called /e/ OS “ready” and means that I’m currently using a very well working (inofficial) LineageOS 16.0 (9-pie) build with OTA update once or twice a month. If /e/ releases an Oreo 8.0.0 compatible /e/ OS ROM, I will of course switch back to /e/.