Video transferred to Android cellphone; says "video cannot be played"

Transferred a recorded video to cellphone (Motorola Moto G Power 2022). ### Assumed, perhaps naively, that Audials One 2023 needed device model info to CORRECTLY convert video to a USEABLE format during transfer process. ###  Also did a manual format conversion via Audials console.  ###  BOTH of these resulted in "Unable to play video" on cellphone.   ###  So ... precisely WHAT format do I need (and HOW would I know which?) for video to be playable when transferred from Audials (on Windows 10 PC) to cellphone?   _________  Also - PRECISELY HOW do I readily & dependably use Audials to capture/record a specific segment after opening a streaming video in browser?  ###  None of the methods I tried consistently provided a "Record" option in a pop-up window on top of streaming display!?! It was "hit or miss"      _________________________________________

*BTW - Forced Topic selection - "Audials for Android" - does not seem particularly relevant!