Migrated my Mojang account to my Microsoft and scene I did I haven't been able to log in. Every time I try to all I get is this useless message:

"Something went wrong in the login process. If the problem persists, check your internet connection."

I use to get a different massage:

"Something went wrong in the login process."

This one was even more useless. But, there was an update and I was hopeful for about a minute that the problem was fixed. Now I'm getting the first message and it hasn't been fixed.

My internet connection is fine as I'm posting this bug report on it. I have tried all the suggested fixes and all the other ones I could find. This is clearly a Microsoft problem.

Yes, I can log into my Microsoft account on there web page.

No, my Microsoft Store done not work nor has it since I installed Windows.

I can log into my account on Minecraft webpage.

It's just the Launcher that is broken.