Author here. Yes this is a significant price to pay, but being able to test once and be sure that your users' experience will match your testing is worth a lot.

Author here. Yes this is a significant price to pay, but being able to test once and be sure that your users' experience will match your testing is worth a lot. It should be possible to have an updater that avoids downloading the main chromium dylib on most updates. This is actually not based on CEF, btw, but on libchromiumcontent (the Electron alternative to CEF).