Ugh, I wish I was in a good place financially to donate to everything I use... There are so many great KDE projects, and non-kde FOSS projects too! One day...
Okular, KDE connect, plasma, krita, freecad, libre office, KiCAD, local send, antennapod, gadgetbridge, immich, paperless, bookstack, home assistant & esphome, leantime... The list goes on, but even if I only gave 5€ per month to each, that would be more than 75€ per month and that is way above my budget with our renovation costs.
Not even to mention the good YouTube creators too! Maybe if I get a bonus at the end of this year I can spare 150€ or so.