Can Plex Player on LG C8 OLED convert TrueHD Atmos to DD+ Atmos

If I play TrueHD Atmos file on the LG C8 OLED Plex Player, can it convert it to Dolby Digital Plus and pass it to my soundbar through ARC?

I gave up this approach previously reading that few devices can convert TrueHD to DD+ because you need pay that license fee. But then, I read this article saying LG C8 can do this because it supports that, so I am wondering if that enables the Plex player on C8 can do this too? (https://www.trustedreviews.com/how-to/hdmi-earc-sonos-arc-4035031 There is a workaround: if your TV supports Dolby Atmos decoding natively, such as LG’s 2018 OLED TVs, then the TV can decode the high-resolution Atmos input and re-encode it as Dolby Digital Plus to send to the Sonos Arc.)