I used to suffer with anxiety. Was on medication and seeing a clinical psychologist. Time away from parenting, with my partner (at the time) in a relaxing environment that was nothing like home, actually helped me greatly. It helped me feel refreshed and cleared my mind of whatever stressors were at home. Everyone is different.
Same when people say that her anxiety is fake because it doesn't happen when she has a photo shoot or an event or something fun. My anxiety was the worst at night when I was alone. I would throw myself into work, study, social life, anything to stop my mind being quiet because that is when I would spiral. I would get panic attacks when I was no longer busy. To people around me it looked like I was thriving. Any time I share my history of anxiety with people, they without fail will say something along the lines of "you seem so chill and confident, I would never think anything phases you".
I'm not saying this to defend grace btw, just that others may read comments and think "oh I mustn't be struggling if I am able to go away and be fine, I need to just cop on" or whatever else, everyone is different.