Thank you very much for that! I was searching for it long time ago.
P.S Is there any way to reduce bitcoin node stroage & data usage?
If you are talking about running a full-node, you have to download and verify the entire Bitcoin blockchain. After that, you can use pruned mode that requires only a few GBs of storage on your hard disk.
But Electrum is an SPV client, so you don't have to worry about storage limitations.
And if you decide to go for a payment processor such as BTCPay Server, you would also not be dealing with full-nodes.
Edit: While going to work, I thought about what I said. So I did some research and it indeed looks like you do require a full-node with BTCPay Server, but it comes with the installation. Sorry for giving you the wrong information initially.
Thank you for replying. I've read their docs that why I asked for that no problem at all friend.