The popular vote for the House is running at about D+0.8 at the same time as it's D+2 for the Presidency. Currently, that's a 1.2 point GOP overperformance relative to Trump.
As in 2018, uncontested rates will tend to understate GOP support in the House popular vote. 21 Democratic districts are uncontested vs. 8 Republican districts. In 2018, this caused a shift of 1.5 points - necessary when making comparisons to the generic ballot numbers.
When uncontested races are excluded, Republicans hold a 1 point lead in the popular vote for the House - 49.9% to 48.9%. Of course, the average Presidential result would also be a bit more to the right in these districts, but not by a full point.