Well if you want to claim your bitcoin gold and just be done with it, you have to use either this wallet or coinomi it seems.
There are definitely alternatives to Coinomi.
When you say you wouldn't use it unless you converted all your forkcoins to bitcoin. What exactly do you mean by this? You mean once converted, you immediately convert that BCH, BSV, BTG etc to btc immediately?
Yes. The moment I recover my fork coins, that very moment I'll express my disagreement of the fork's existence by converting them to Bitcoin.
But what would be the negative of claiming it and not converting it?
You may don't feel safe with it for one reason or another.
I mean there is no harm in claiming bitcoin gold and just sending it to nano ledger and holding it there right?
Security-wise? No.