On my Macbook Pro (OS X El Capitan) I was having issues on Electron based apps. These apps had visual issues/glitches like blank screens, visual components showing only when hovering or transparent menus.
By opening with these comands, the problems disappeared.
open /Applications/Slack.app/ --args --disable-gpu
open /Applications/Trello.app/ --args --disable-gpu
open /Applications/Whatsapp.app/ --args --disable-gpu
Glitches also happens in Trello app on my macbook with a dying graphics card.
open /Applications/Termius.app/ --args --disable-gpu