Seems OP is a fan of Google. As @o_e_l_e_o said Google should meet all the criteria to receive and recover your fund back.

First of all, I will not encourage you to create a paper wallet and store your fund there. I don't have enough faith in it, don't ask me why because I don't know. I am using hardware wallet and open-source noncustodial wallet Electrum, so I have faith in these two.

The second thing I still failed to discover is why should I use Gmail store Bitcoin to use in the future by schedule mail. Why we can't buy a hardware wallet or use an open-source noncustodial wallet to store Bitcoin and use it future? Who is forcing you to sell it if you don't want to do so?

The advice wasn't soo good. For myself, I will not do it ever.