The Paris CC Accord was structured so the wealthiest countries paid in the most money, and the least wealthy countries were given that money to help them improve their economies so they can afford to adopt low carbon emission technologies.
There was no requirement for the countries taking out of the "fund" to meet any CO2 production goals. The incentives, subsidies, tax credits, whatever you call them were to improve the ECONOMIES of these countries.
It's international welfare. And if you think the money being paid in is going to do anything other than make the leaders of the countries taking the money richer while nothing improves in their national economies, you haven't been alive for longer than, say,, 20+ years?
How is ANY country going to pay into the fund now that the pandemic has all but destroyed the economic growth each hoped to achieve for at least 2-3 years? We're going to be working hard just to get back even. When you lose 50% of your GDP growth, you then have to double what's left to break even in addition to maintaining the growth you would have had anyway. Very difficult to do.