evolution-flatpak click-drag moving lots (hundreds+) ews e-mail freezes evolution to process something
In Evolution 3.36.0 (by Flathub.org), I archive e-mails per month (to avoid performance issues in operations in PC and in my head).
It used to work okay (maybe even 1-2 months ago, but the safest bet is the Ubuntu Xenial version), but nowadays evolution will freeze ~0.5s after starting to drag e-mails, for an X amount of time (that seems to be related to how much e-mails I have selected before click-dragged).