I'm a bit new in the forum and still trying to figure out how so many things work, I would love to know how to get a functional wallet address or a step-by-step guide on how to create one.
Electrum wallet is open source wallet and most secure wallet so far. you can use it in the mobile (Android+Ios) and desktop. If you wanting only to store btc then it is best choice but if you want to store multiple coins like Btc, Ethereum and other in one place then I will recommend Trustwallet (10 m download) or Safepal wallet (1m download).
You can also check this article to choose one best for your nees
https://www.investopedia.com/best-crypto-software-wallets-5220762