I have used blockchain.info as a place to store one of my wallets for many years now.
But blockchain.com isn't a place to store your wallets for many years! You have to understand that you're trusting your laptop and every program it has installed, your email service, your phone (if it has access to your email account) and blockchain.com itself.
That's the point.
If you keep your money in a hot wallet, you might be ok for 1,2,3,4,5 years, but eventually you may lose your coins.
Specially if you do things like that:
This past weekend when bitcoin hit 60k while visiting my parents (on their secure wifi) I logged in to blockchain.info on my phone (updated google pixel phone) via the chrome browser. I had to verify my log in attempt in my email as usual. At 8:36am I saw my balance, an all-time high, it was there. I used my phone, as usual for a few minutes, checked on the news feed. Checked text messages. A few minutes later I went back to the blockchain page to look at the balance again and it was zero.
You kept logging in your account, in many different wifi... Then you use the phone to read stuff, go back the wallet and so on. This is ok if you just have a few bucks in your hot wallet... There are many possible attack vectors there.
You can have a few thousand dollars in your phone. But then, I would advice you to have a proper mobile wallet (such as electrum or mycellium), which are dedicated app that have the keys stored only inside your device.
Your private keys from blockchain.com are online, in a server from blockchain.com.... they could be hacked, or a hacker could intercept your connection between you and blockchain.com... or you could be hacked, or phone or computer.
The best solution for your case, imo, is to buy a hardware wallet. They are safe and easy to use.
If you want to check your balance everytime, you can just track your address in blockchain.com website (not your wallet), and if you have multiple wallets you can check the balance in a service like this
one. (where you just paste your addresses and check their balances, no logins, no private keys.)