If you're rooted you can just delete them in a root file explorer like mixplorer,or you can delete them in twrp file manager,its ok to remove browser and health app, I've done it
Apps that are safe to be disabled, can be disabled. What can't be disabled is part of MIUI's functionality and cannot be safely disabled without breaking features.
What in my reply was disrespectful? I gave a straight answer, it's not my problem that you didn't like the answer.
Don't come complaining if something doesn't work right.