Hello @andreas.steffek,
I hope you're doing well. That's how it's always been I didn't notice it until you just brought it up.
If you go into preferences, General. You'll see the option to reverse zoom direction. That will apply to the modeling environments of Fusion 360. If you want to change it for electronics go to preferences > Electronics for the mouse zoom factor make the number negative. You only want to make this change for one or the other, don't do both.
Let me know if you continue to run into problems.
Best Regards,

Jorge Garcia
Product Support Specialist for Fusion 360 and EAGLE
Kudos are much appreciated if the information I have shared is helpful to you and/or others.
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