Are you working at Proton? Is it open source?
Discussion
No. I don’t work for them and I don’t plan to use it for savings but for small stacks like <0.05 BTC to refill my lightning wallets.
Clearly what you are asking is a way of saying you don’t study it but FUDding it. It’s open source. You could audit the code yourself.
And quite frankly you could play around with it as transaction fee is low.
Or you could’ve just watched @BTCsessions tutorials.
What the commenter is referring to is accounts not wallets. It’s like you could have different wallets using account index (default is 0) from the same seed. When you create account, you could have receive via email enabled or not. Nothing fishy here.
You could create a wallet, have different accounts. You could also import the seed on Sparrow Wallet and see the transactions from different accounts.
All and all, you could’ve just tested it before fudding.