I have installed gnome-shell{,-common} 3.34.1+git20191024-1ubuntu1~19.10.1 from eoan-proposed and verified that the "opening activities" delay goes down from ~4 seconds in 3.34.1-1ubuntu1 to <1 second in the -proposed package, while having a total of 22 windows open.
I have not done any serious regression testing, so not changing the tag.
Upstream fix is most likely https:/ /gitlab. gnome.org/ GNOME/gnome- shell/merge_ requests/ 763
I have installed gnome-shell{ ,-common} 3.34.1+ git20191024- 1ubuntu1~ 19.10.1 from eoan-proposed and verified that the "opening activities" delay goes down from ~4 seconds in 3.34.1-1ubuntu1 to <1 second in the -proposed package, while having a total of 22 windows open.
I have not done any serious regression testing, so not changing the tag.