Will the new migrated OutletWallet still receive funds when I will utilize my QR code paper wallet to fund again ?
Yes, migration will ensure that everything in the legacy wallet ends up in the migrate wallet. Nothing will be deleted.
In the event that there is an error which does delete things accidentally, a backup is automatically made and this backup is placed in the wallet directory. It will be named in the form
<wallet name>-<timestamp>.legacy.bak This backup of your wallet can be restored with the wallet restoration functionality in Bitcoin Core, or it can be opened directly.
dumpwallet "yourwalletsname"
For a single private key, you can use this command below.
dumpprivkey "bc1sampleBTCaddress"
Without quotes.
These RPCs as disabled for descriptor wallets, as well as all of the other dump and import commands, except for importdescriptors and listdescriptors.
These two commands do not work on the newer wallet version.
How about the dumpprivkey? it works for me my current Bitcoin core version is v26.0.0 the dumpwallet also does not work for me except for dumpprivkey it should work to you unless your wallet is encrypted with passphrase you will need to use the command below to unlock it first before you dump the private key
The version of Bitcoin Core does not matter for whether these RPCs work. What matters is the type of wallet, which is stored as part of the wallet file itself.