Is there a keyboard shortcut to jump the mouse pointer to the current cell in Calc? Even if not, a workaround, perhaps via a third-party tool, would be fine.
In the Menu Tools>LibreOffice>View there by “Mouse”, try the settings.
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With me Windows 10 Home; Version 1903; 64-Bit | LibreOffice, Version: 6.2.4.2 (x64).