Re Mark
I think a lot of the blame lies with Anna and not him. Allana and Dejan have a much better work ethic and Allana clearly pushes herself which in turn pushes Dejan to produce good quality content within certain timeframes. If Anna doesn't want to do that, we can't exactly blame Mark for letting her take the lead. Dejan has no desire to be on camera, where as Anna clearly encourages Mark to be on camera. Anna could easily say to Mark, edit out that bit when you interrupt me or for example in her last vlog when she is doing the intro and Mark has the kitchen tap on behind her, she could have easily stopped filming and said 'babes I'm having a vlogging moment here, do you mind?"
Mark seems to see his job helping Anna as a bit of a side hustle, and his main job seems to focus on gardening and feeding the birds - again this is Anna's doing! It just seems like sometime in 2019, after her book launch and everyday edit videos she decided to take her foot off the pedal - maybe because she raked in £££££ and has never really seemed to be on top of her content like she once was. They clearly can afford a comfortable lifestyle, but lets be real here if Anna loses views/sponsorship deals etc they don't have enough £ to continue to fund that kind of lifestyle indefinetly. They've got all their eggs in one basket and don't seem too worried about it. But if Anna lacks real drive and motivation is it any surprise that Mark does too? I know when I had a boss who would bugger off at 3pm on a Friday to go to the pub it was incredibly demotivating and felt like why should I stay late on a Friday to do work if you can't be arsed. I get the same impression from Mark, but he seems quite content with pottering around the house like a retired 70 year old.