I've gotten into the habit of donating up to the amount the commercial equivalent would cost if I end up using the software. If just to support the project but also I feel the money is better spent because open source can't be arbitrarily deactivated, have pricing plans change, or any other number of enshittifying methods.

Basically I can use it however long I want. An actual perpetual license.

I'm not saying that everyone who uses FOSS should be compelled to donate, especially because not everyone can afford it. But if I was already paying for commercial software before, there's no reason I can't pay a similar amount to a more open project that can't be rugpulled in some fashion.

Like if some of the listed projects above got even a small fraction of the commercial equivalents they would be absolutely amazing. (Blender got about 1.2 million last year in individual donations alone, not counting corporate sponsorships, and its improvements have accelerated a ton. And that's a tiny amount, all things considered.)