Call recording. Either the manufacturer and/or your government may allow or restrict call recording, depending on the country or jurisdiction you're in.

If you do have restrictions, you might try some third-party apps and good luck.

 

From what I have gathered is that newer versions of Android are restricted in this way.

It is a Google issue, and they are in no hurry to change it.

I am using 5.1.1, 7.1.1, and 8.1.0
and I can record calls by using a Wi-Fi calling app called Dingtone.

Call recording is built into the app.

 

I have no idea.
I do not have any of those devices, or know anything of them.

All I know of this subject is what I have already told you.

There are other forums where this subject was discussed in great depth, and the response from Google was that this feature has been depricated in more recent OS.

I posted the solution that works for me and it is quite simple, and free.