https://bugs.winehq.org/show_bug.cgi?id=47940
--- Comment #46 from trymeout@tutanota.com --- I did install the nightly build of MWSE after installing MGE XE easily. Also MGE XE 0.11.6 the current version was released on June 15 2019 which tells me MGE XE is still getting updates and will probabily include MWSE 2.1 once there is an official release and there will be no need to install a MWSE update ontop of MGE XE.
Thank you Lorenzo Ferrillo for helping me make mod work! It really brings Morrowind to life and makes it feel more modern without needing to use Windows 10.
This setup to make MGE XE mod also works in Proton 4.11-7 as I have tested it. This setup to make MGE XE also seem to work in older Wine versions such as Wine 4.0.1.