I find it contradictory that you have taken precautions like using live OS without Internet access, but then use a Bitcoin software that wasn't verified neither by you or anyone else. I don't know if that site is legit, and you can never be sure that just because there are no scam accusations against it, it's 100% safe. We have open source wallets like Electrum or Bitcoin Core which are used by millions of people, why not use them?
The wallet generator used is open source and verified to be legitimate (made by a reputable developer named "coinables"). Anyhow, I guess that it's much better to use a well-trusted wallet for the generation of Bitcoin keypairs. I'm going to use Electrum as I don't want to wait for the blockchain to sync. Funny thing, I haven't moved my "pre-forked" Bitcoin to a new address yet. I will try and do this as soon as possible, before my old wallet gets compromised.
If you have any other suggestions, or recommendations, feel free to keep in touch with me anytime. I am very grateful for the help I have been given on this forum. Hope to become an expert on crypto sometime in the future.
