Flatpak app scaling

I use Flatpak for the Brave browser and Ungoogled-Chrome browser. They have both been updated in the last few days. I have a laptop with a high DPI scree and I adjust for this by scaling fonts to 1.7% in Linux. Up until know Flatpaks have followed those settings, but with the latest updates to those apps they no longer do. I can use shift_ctrl_+ to adjust the page body, but the URL box and bookmarks are so small it's nearly impossible to read. I have tried the following and neither makes any difference at all:

flatpak run --env=GDK_DPI_SCALE=1.5 com.brave.Browser

flatpak override com.brave.Browser --env=GDK_DPI_SCALE=1.5

Any ideas are greatly appreciated!