[2020] A glossary would be nice

There is. If you open the game, there's the tab "Help & Tutorials" and under "The Game" you can find a "Status Effect List." A example: https://i.imgur.com/4en4Gi9.png

You can also open this in a match.

Originally posted by AangryEeyore:

Originally posted by Gay Myers (Luzi):
You can also open this in a match.

Yes. Thats what we all want. Survivors AFK looking up status effects in game.

The OP specifically mentions "Sometimes when I play survivor and status effect start stacking up and I don't understand how it affect me."

If this benefits them to sit there for a few seconds for a quick read to understand, that's perfectly fine.