I don't see any conflict between Vinicius Jr. and Mbappe. They were acting really friendly with each other. Mbappe assisted for the goal scored by Vinicius. Oviedo is a really weak team and AFAIK, Oviedo is having financial difficulties as well. Real Madrid would probably have big problems against all the stronger opponents in the La Liga. I didn't watch Barcelona's performance against Levante, but their victory was achieved after serious resistance coming from Levante.
I can't believe that Atletico Madrid would ever sack Simeone. This is just clickbait and gossips.
The team from Madrid is a total favorite for winning the match versus Alaves before facing Villarreal in September.