I read the questions and answers at the link I provided, and the article was written by a person who has little experience with Bitcoin and encryption, and some of the answers are incorrect.
Large volumes are generally quickly authenticated rather than smaller transactions.
This is not true. Confirmation of Bitcoin transactions is not given priority based on their volumes, but rather on the fees paid. The higher they are, the greater their chance of being included in the next block. Sometimes the fee for sending a million dollars in Bitcoin is equal to $1, and sending $10 costs $2.
Funds that haven’ to been authenticated by miner are known as unconfirmed transaction and goes back into the sender’s wallet.
Generally, it doesn’t happen. It takes 10 minutes for authentication only. In some cases where there is extreme traffic, it has been reported to lasting even for 1 hr.
This is not true. After signing the transaction, it is broadcast to mempool of the contract. This mempool is the place from which the miner takes the transactions to include them in the block after mining the block. As long as you continue broadcasting the transaction, it will be confirmed, but it will not return to your wallet after an hour.
They help to keep the security system clean and keep the brand from earning any dubious distinction. It also minimizes the chances of double-spending of Bitcoins.
there is no relationship between Full Node and minimizes the chances of double-spending
All answers require revision.