LOL I've been wondering for a long that the app I have on my phone is my wallet and all that. I had no idea that I had misunderstood this. Let me now explain what I recently learned about your wallet.
Let's start with the fundamentals of wallets for people who are new to this area.
 
It's not a wallet in the conventional sense, whether it's Metamask, Electrum, MEW, Trust, Coinomi, Atomic, or any other program you consider a wallet.

Actually, you can use these wallet software to securely maintain and access your cryptocurrencies, NFTs, and other blockchain assets.

Your private key or seed phrase is what makes up your wallet.

For illustration:

It provides the option to produce a seed phrase or private key when you install Metamask.
Other programs like Trust, MEW, and Atomic may all access your ETH if you use the same seed phrase across them all.
Therefore, the next time you download a wallet app, you won't need to create a new seed phrase; instead, you can import the one you already have to manage your current funds across different apps.

It's important to know that seed words are incredibly versatile and let you manage assets on any platform.

Your phone was lost?

No issue. Get a new one, put your seed phrase in whichever wallet you choose to install, and then. Because no other entity has access to your information, it cannot be hacked or copied.

Blockchain technology is so revolutionary because of this.

It's also important to stress that you should never give someone your private keys. The only access point to your blockchain assets is through your keys, which ensures their security.