We recently implemented custom row height selection in Discover 🥳 (PR #122087) . There's an issue we've encountered. When users select a new row height, this is propagated to the URL, and EuiDataGrid retrieves this new setting. So it's the new default. But the way it currently works is that once users change the row height, the "Reset to default" link is displayed, and clicking on it makes it disappear.

What's more, if the user changes the setting in URL, it's ignored (given the value was changed in the popover before), so the external change doesn't change the grid's internal one.