Adobe sucks.

Let's get something that doesn't suck~

Photoshop Alternatives

Raster image editors

Gimp

Gimp

Free and Open Source
GNU/Linux, macOS, Windows, and more

Krita

Free and Open Source
Windows, MacOS, Linux

Free but Closed Source
Windows only

Illustrator Alternatives

Vector image editors

Inkscape

Free and Open Source
GNU/Linux, macOS, and Windows

Premiere Pro Alternatives

Video editors

Free and Open Source
Windows, Linux, MacOS

Free and Open Source
Windows, Linux, MacOS

Animate Alternatives

2D animation tools

OpenToonz

Free and Open Source
Windows, MacOS

Synfig

Free and Open Source
Linux, Windows, MacOS

After Effects Alternatives

Video Composition

Natron

Free and Open Source
Linux, Windows, MacOS