YESSS KRITA AND DAVINCI RESOLVE MENTION !!!! i just downloaded davinci and i'm so excited to use it. i've had krita for almost 3 years now. finally started animating in it :]

Resolve has a similar level of compositing functionality to After Effects, but playback is smoother than premiere, it's genuinely insane. It also supports OFX effects plugins, so you can add so much more. The UI may be a disjointed mess, but you can absolutely cook once you get the hang of it.