If a stock you hold pays a dividend, it is automatically credited to your Mintos account as available cash after any withholding tax. You are notified when the dividend is credited, and it appears in your transaction history.
To be eligible, you need to hold the stock before its ex-dividend date. If you hold a fraction of a share, you receive a proportional part of the dividend.
Not all companies pay dividends. Whether a dividend is paid, and how much, is entirely the company's decision. Learn more in [How do stock dividends work?] and [What are dividend stocks?].