Hi Ivan,
Greetings from Syncfusion.
We have validated and considered your query as a bug and logged the defect report “Excel filter dialog is partially hidden in mobile view”. Thank you for taking the time to report this issue and helping us improve our product. At Syncfusion, we are committed to fixing all validated defects (subject to technological feasibility and Product Development Life Cycle ) and including the defect fix in our upcoming patch release which is expected to be rolled out on or before mid of March 2021.
You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link.
Until then we appreciate your patience.
Regards,
Rahul