A couple of thoughts:
McLaren are not prepared for a Driver's Championship.  They are too focused on egos.  This race in particular was one that called for strict team orders not to race each other - the wet conditions made driving dangerous, let alone trying to pass.  McLaren allowing Piastri to put pressure on on Norris was inviting a mistake by one of them - when they had a 1-2 wrapped up.  McLaren should have been firm - and effectively determined that Quali was the intra-team competition, and the winner would be supported in the race.  Better conditions might open that up - but I suspect the team will struggle to have a strategy for pursuing a Driver's championship this year - could end up hurting both their drivers.
Ferrari - ugh - they need to smooth out Hamilton and his engineer within the next few races - Hamilton is always temperamental, and Mercedes knew how to handle that - not sure Ferrari are prepared.  And, I would say every single strategist at the team, and just start fresh - it would surely be an improvement if they simply picked random Ferrari supporters who turn up at each track.