I was not able to reproduce the same issue on my end.
I made a Grid which is higher than the page and it does not scroll to the top of the page when a button is clicked:
I can assume that based on a custom logic, the Grid may be re-rendered on a button click and the scroll position is reset.
Please check the following article demonstrating how to resolve this:
If my assumption is not correct please send a fully runnable example reproducing the issue and I will gladly assist.
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