The grouped grid appearance in universal currently differs from windows/web. Grouped columns are treated as regular grid-columns, which creates an indentation in the rows under this grouped columns.
It would be nice if universal appears the same as Windows and Web in this case.
There are a couple of TCP tickets for this issue too. Know that we have it on the radar and intend to resolve it in the near future. It requires an upgrade to the used AgGrid component first.
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