When wars are going on, most people in affected countries are thinking about heavier things than going to an art exhibit and boosting their collections.
2020 and 2021 was when the pandemic happened. Businesses started feeling the crunch all over the world from the lockdowns. Supply chains got bullwhipped. People weren’t exactly interested in going to buy artworks after their one-time UBI checks and PPP funds ran out. And other countries didn’t send those out at all.
Oh yeah, and AI has now sent a supply shock to the whole art industry. But we can’t say that on HN, there will always be someone popping out of the woodwork claiming AI is a non-factor and saying things were always like that.