The difference is that IE/Edge no longer dominates the market. There is a fair competition between browsers now, so there is no need for an anti-trust lawsuit. Or if there is, it should be against Google.
Microsoft got in trouble for bundling, that is, using their Windows monopoly to unfairly advantage IE over Netscape. They still arguably have a monopoly position on the desktop and they're using the exact same tactics they used in the 90s, so yes they should get in trouble for this all over again.
Wasn't the issue that Windows dominated the desktop OS market, which they used to push their own browser, not that IE dominated the browser market? And the former is still true.
Microsoft is still using it's near-monopoly position on the desktop to push it's browser. Exactly the same thing it was slammed for before.