Is it possible to disable pdf horizontal scrolling for Acrobat Reader DC when used on an M1 MacBook Air so that two fingers on the track pad only permits vertical scrolling?
Hope you are doing well and sorry to hear that.
Is this an issue with a particular PDF file or with all the PDFs that you open with Acrobat? Please try with a different PDF file and check.
Also, please share the PDF file in question, so that we can check it at our end and assist you better?
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Please goto Edit (Win), Adobe Acrobat (Mac) > Preferences > General > Uncheck 'Make hand tool use mouse wheel zooming' > Click OK and reboot the application and check if that works.