Second this. There's no money in donations. Also the target demographics for donations is individuals, who rarely donate and are kind of desensitized to the whole thing at this stage (as everyone and their mother asks for donations).

Companies need to jump through legal and accounting loopholes to donate, they very much prefer a simple purchase, which is nice! But setting up actual purchases is a whole different ordeal with open source, now the question is why is the company paying for something that's free?

Source: my own 5-stars open source project with 500k+ active users that paid for 3 coffees in total over 10+ years. I still get like $2 sometimes after a long while.