[Lunatixz]

@Lunatixz 

Ok thanks for the detailed replies.

1. Another issue: multi-PVR operation (and Nexus multi-instance PVR + multi-PVR operation.)

From some confusing discussion in another Forum thread, it looks like multi-PVR means assigning different playlists to different PVRs installed/enabled, and then using only one PVR as output.

2. I am assuming this default output PVR is PVR Simple (which you use to output), and this default cannot be changed.

There was a suggestion to do some configuration with the sidebar menu, but ATM the LibreElec repo (hosting PVRs) is down for 18 hours from my AE-PCx86 11.1.10 Nexus build, https://alexelec.tv/
So I can't check for now.

3. So how would this multi-PVR scenario affect PTVL operation? 
That is, user assigns addon VoD/playlists and m3u playlist sources to PTVL, but user might also be using other PVRs.

So how would this single output look like in Kodi- > TV ?
What I have learned so far is that multi-PVR channels are all aggregated in a unified Guide, Channels List in Kodi >Live.

But it is not clear to me how to configure output(s), since Kodi >Live TV gives no indications of what PVRs(s) are enabled. However  Kodi > PVR &Live TV > General has sub menus for looking at enabled PVRs from the Repo list, and assigning them priorities (which I don't know what to do with !)

I am looking forward to PTVL Stable soon ! Nice, much desired integration.

1. As I understand multi-pvr which was supported back in Matrix and improved for Nexus allows more than one pvr backend to run. I've found in-order for this to run properly client priorities have to be configured in Kodi's PVR settings.
2. Not sure what you are referring too. If you are asking... PseudoTV Live supports IPTV simple. It is a dependency. I can not speak for LibreElec setups...
3. It shouldn't, please read the information provided in my readme and this forum.

Stable? If you are encountering an issue I would require feedback in-order to fix. THX