I am 19 years old and I am living in south korea. I transfered all of my bitcoin from electrum to Samsung blockchain wallet.
They provide restore phrase and wallet. It is an app that you can download through galaxy store.
I think this is quite safe because Samsung is very legit company.
They also say that they can't see my restore phrase.
I am curious about your opinion.
I don't know but a rule is if you are using a Samsung phone and use built-in applications from Samsung, do you think it is safe?
You are like using all in one from a same producer from hardware to software, it is very centralized and it means risky.
I don't know about Samsung blockchain wallet and never used it but I believe it is a custodial wallet, close source too. In cryptocurrency, to be safe you must use open source, non custodial wallet.