Thank you all for explaining so beautifully. Many people talk about many wallets, I chose Electrum wallet. I am going to use electrum wallet.
It's a good choice; in my opinion, it's the best one out there. I've been using it for the past few years, and I'm perfectly satisfied; it's simple and efficient. As others have already mentioned, if you're not actively trading, avoid stalling your funds on a centralized exchange; there are plenty of examples of them suddenly failing, such as Mt.Gox or FTX. I also saw some users recommending online wallets, which should be avoided at all costs. I've lost money that way.
Moreover, if I were you, after you're accustomed to cryptocurrencies and hold some Bitcoin or other coin yourself, I'd consider purchasing a hardware wallet, preferably Trezor, because there's currently some commotion regarding Ledger, one of the two most well-known options.
Keeping funds at an exchange or any other centralized exchange is obviously not a good choice if as you said they are not being used and are just kept idle, one should only have funds at an exchange or another platform if they are using the funds for some service offered by that platform, otherwise, one should always keep their funds in a wallet that give them full custody of their funds.
Electrum is probably the best choice if someone isn't willing to buy a hardware wallet and if someone doesn't have a lot of funds, electrum should be good enough to keep a few hundred or even a few thousand dollars since it is safe and secure if you have the seed phrase and private keys safe.
