In the country where I live, I don't need a VPN to make transactions or trade in crypto. Because in the country where I live, there are no restrictions on investing or trading in crypto. So I don't need a VPN to make transactions or trade in crypto, because where I live, everything related to crypto is not prohibited.
Maybe if there is a ban on crypto users, using a VPN could be the right way. Because a VPN can change a country's server, and so can circumvent country rules that prohibit crypto.

And for the matter of storing crypto assets, I keep them in my personal wallet. What I think is that the wallet is safe, and definitely non-custodial. Because the government in my country, as far as I know, doesn't issue rules relating to the use of wallets that must be used. Therefore, I personally and investors in my country, are free to use whatever wallet they want, the most important thing is that the wallet is safe. So the rules in my country are not too restrictive or complicated regarding crypto users.