Not to the same level as back then, the closest thing would be Apple refusing to implement good PWA integration and Web Push Notifications (forcing people to use Apple Push Notifications which only works in Safari). PWAs are still (mostly) supported in Safari, they just don't integrate at the OS level in iOS.
Apple is still actively developing Safari and JSC and implementing standards, Microsoft basically COMPLETELY FROZE browser improvements for 10+ years. Worse even, they pushed proprietary Microsoft-only solutions to try to lock-in people.
Boy, it's a different company doing this now, but this is definitely still something that is happening, especially in mobile.