I have been running Apollo v1 node since inception and now with Apollov2 i'm asked what is my wallet address.
Also where is the wallet address of our node? Don't really understand that part thought do understand bitcoin wallets with password in general.
That's for the SOLO mining feature, and points where the mining payout would go if you mined a SOLO block. I am not sure how it functions in regard to mining to a pool instead, but I assume you need to provide a payout wallet address there too. As I understand it (and what the guide says), there is no wallet installed on the Apollo 2 node by default due to security issues - you can install one manually, but you have to understand what you're doing and secure it. I'd recommend you use another wallet instead, like a hardware wallet, and point it to your node if possible (which can also be difficult - Ledger used to support it for example, but its an experimental feature now to use your own node and I was not able to get mine working very well when I was using an Umbrel node in the past)