Flatpak directory is becoming too big

Has anybody else noticed this? After a few update iterations, /var/lib/flatpak is becoming too big, especially /var/lib/flatpak/app/us.zoom.Zoom with 11 G. It was already reported to the zoom package maintainers, but no acknowledgement so far:

Side note: Zoom does have RPM package, formally for up to el8, but seems to work on el9 too. Currently zoom-

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