Xiaomi Corporation (/ˈʃaʊmi/;[3] Chinese: 小米集团) is a Chinese multinational corporation and technology company headquartered in Beijing, China. It is best known for its consumer electronics, software, and electric vehicles. It is the second-largest manufacturer of smartphones in the world, behind Samsung,[4] most of which run on the Xiaomi HyperOS (former MIUI) operating system. The company is ranked 338th and is the youngest company on the Fortune Global 500.[5][6] It has been called the “Apple of China”.[7]

You are stuck. There was time like 5 years back when Xiaomi had its dialer in all phones including call recording feature. Then due to regulations and laws it has changed. Now all global phones have Google dialer.

However you can do this – unlock bootloader, install Xiaomi.eu ROM and you have not only call recording back but also many other improvements. But also problems with Google wallet payments… Anyway you should be experienced user to be able to do this.