Is it possible to import BTC from another wallet and then claim BTG? Or can you just claim BTG if the BTC were on Exodus already?
No.
Tip: For that, you could use Bither[1]. They let you import private-keys and have a tool to claim BTG[2].
[1]
https://bither.net/[2]
http://docs.bitpie.com/en/latest/btcbtg/Thanks for the info.
I already knew about Bither though. Coinomi is possible, too. Anyway i do not feel comfortable using mobile wallets. Hence i rather wait for a proper desktop wallet to support BTG