Here is some stuff from my notes on the book to give a rough idea. Disclaimer, I don't have a horse in this race, so any grievances with these ideas are not with me, although I am trying to give the degrowth ideas a fair shake. You will see that some of them are basically socialist demands:

[degrowth is about] democratizing the development of productive forces and social metabolism in order to achieve public abundance (p.22)

Not about austerity or belt-tightening sacrifice (p.22)

Degrowth is about private sufficiency and public abundance (p. 23)

Degrowth differentiates between certain economic activities and forms of production and consumption, proposing policies for the downscaling of some and the flourishing of others (p.24)

growth does not differentiate between the useful and destructive, essential and superfluous. (p. 24)

it is because our economies growth dependent that stagnation is seen as problematic. p. 27

[degrowth also strives for ] decoupling wellbeing from imperative to grow. p. 27

• Effects of growth: destroys ecological foundations of life; impedes equality and well-being; imposes alienated ways of living; depends on exploitation, competition, accumulation; relies on gendered super-exploitation; oppressive ways of production; relies on neocolonial relations.

• 6 changes (p. 33):

  • democratize economy, redistribution and social goods;
  • democratizing technology, a repair station in every neighbourhood;
  • revaluation of labour, reducing work time and eliminating useless jobs;
  • democratization of social metabolism;
  • international solidarity and reparations in the form of money, technology, and help.