Disk utility shows several disks

I recently reinstalled and factory reset my MacBook Pro and come across a problem. Before that I had only one disk - Macintosh HD. Know I have three in Disk Utility - Macintosh HD, Macintosh HD - Data and another Macintosh HD - Data (but written in my native language).

Here I've got only two disc though.

Is it okay? My version of mac is 10.15.14 Catalina. How can I change it, may I delete all of them except just HD?