From experience, I’ve never been lucky with finding groups of randos willing to play consistently. Campaigns that began this way would always fall into scheduling hell, because people are only there to roleplay, not to spend time with friends.
I’ve had more luck with convincing my friends to play. Since we are friends, we already spend time together, so scheduling a weekly game is much easier. We did have a few hiatuses because of work or family-related issues, but for the most part, we’ve played consistently for the past few years.
I see the Player vs Player more as a mindset than an actual fight between players.
Tension and fighting between players are fun and can lead to interesting character development, if there’s a narrative reason for them to exist, and for as long as the players are okay with it.
What I forbid is, the mindset. The players are a team and they need to stay together, act together, and rely on each other. No splitting the party if it’s not necessary, no fights over loot, no backstabbing, or anything of that sort. Everyone is entitled to have fun.