Bitcoin address are a combination of alphanumeric numbers, and as such, how lengthy or short it is does not guarantee safety, but what determines the safety of a Bitcoin wallet is the type of its wallet host, such as either a custodial or non custodial wallet, as it has been proven that the most secure Bitcoin wallets are non custodial wallets such as Electrum and Bluewallat, where individuals could have access to the private key to their funds.
How you protect your seed phrase and private keys are part of what that guarantee you coins safety.
Absolutely, you are very correct, since Seed phrase and private key are usually the gateway to the entrance of all Bitcoin wallets.
So with the prefix "bc1" at the start of the wallet address, it's a sign that's Bitcoin Segwit wallet address, and usually contains 26 to 36 characters.
bc1 can be for:
P2wpkh which have 42 characters
P2wsh which contain 62 characters
P2TR which contain 62 characters
Thanks for the detailed explanation Boss, because not until today I never knew bc1 Segwit wallet address was subdivided into these 3 categories given above, and on that note, I look forward to making more personal research about it for my understanding.