Some Flatpak APP become strange after updating to KDE Plasma 6

[SCY]

After I update to KDE Plasma 6, some APP’s interface become strange.
These APP are installed from Flatpak.

I take a screenshot of Bottles.
Content in the middle box becomes crowded and difficult to read.
Another APP “Flatseal” also has the same problem.
How do I solve this problem?
Thanks.

[NurseBetty]

Installing xdg-desktop-portal-gtk helped me.

[SCY]

It works! Thanks!

[pebcak]

Welcome to EnOS’ community @SCY and @NurseBetty !