Weekly Account Block when trying to access Mail via Browser

Looks like funny Apple team discovered a new possibilty to annoy their users. Around once per week I have to unblock my iCloud accound and choose another passwort.

I'm not sure, if Apple really think, that not asking for MFA but directly block the account, when using a Non-Safari Browser.

As a result, I have to reset my password on around a weekly basis, which is not funny, in the meanwhile, I have to write down the PW. Or not, because I have to unblock my account anyway next time loging on.

The curious thing is, that Apple really think, it is increasing security, to directly block an account without MFA verification and then asking for chosing another PW with the same PC and Browser, which causes the security lock.

I can't help myself, but it looks like Apple somewhere discovered strange security policities...

Is somebody else facing a similar problem?

To me it looks like, the only possibility to prevent the Account of beeing blocked, is to not use browser for using icloud anymore... Or always unblocking the account and chose a new password, when willing to read a mail with a browser...