I think, as others have said, that much of what she gives as her narrative are of her being completely alone and then people tit on the dad for not being around when he is.
I also don't think it's a problem to question if she's able to parent to the best of her abilities if she's tweeting 24/7, doing a 'chaos' all the time, putting him in positions where he has to check if she's alive. It must be exhausting living in that household. Since March, SB has had his second future step mum leave, had his mum pretend her hair has fallen out, watched his mum do re-decoration/studio projects that came to nothing, had his mum start a pile-on against his favourite author, had a new pet in the house that became the love of his mum's life before it quickly died, then had his mum immediately leave for a holiday in Edinburgh, then just on the eve of him going back to school, he had to deal with his mum's black eye A&E episode. In addition to that, SB is alone in a house with a mum who is either working all hours or sleeping all hours (or most probably tweeting all hours) and is now parading him on twitter trying to tell a story of how lovely it's been to have quality time together over lockdown.
I'm having therapy because of my narc mum. Just because you are housed, clothed and fed and your parents aren't violent or substance abusers etc etc doesn't mean that all is well.