Happy new year everyone,
I’m going to try and resume this initiative after our respective holidays, so here are some first-contribution merge requests which have been open a week or more and haven’t had any feedback.
Remember you can see a list which is updated daily at https://gnome-metrics.afuera.me.uk/ , in case you already reviewed all of these 
Geary - Priority
Opened: Dec 30 (updated Dec 31)
Author: Yuri6037
URL: https://gitlab.gnome.org/GNOME/geary/-/merge_requests/620
File Roller - Remove “'” from “%'d”
Opened: Dec 31
Author: scootergrisen
URL: https://gitlab.gnome.org/GNOME/file-roller/-/merge_requests/45
gnome-calculator - Change “Clr” to “C”
Opened: Dec 31
Author: scootergrisen
URL: https://gitlab.gnome.org/GNOME/gnome-calculator/-/merge_requests/70
pygobject - WIP: Refactor property handling and support more array types
Opened: Dec 29 (updated Dec 30)
Author: smspillaz
URL: https://gitlab.gnome.org/GNOME/pygobject/-/merge_requests/160
librsvg - configure: Improve failures due to missing pkg-config
Opened: Dec 30
Author: ismael
URL: https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/455
adwaita-icon-theme - Lint render-symbolic.rb with rubocop --fix
Opened: Dec 29
Author: ItzSwirlz
URL: https://gitlab.gnome.org/GNOME/adwaita-icon-theme/-/merge_requests/20
libxml2 - Use glibc strlen to speed up xmlStrlen
Opened: Dec 29
Author: ilyazub
URL: https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/95
gobject-introspection - regress: Add GArray prop with different transfer annotations
Opened: Dec 29
Author: smspillaz
URL: https://gitlab.gnome.org/GNOME/gobject-introspection/-/merge_requests/255
polari - networks: add hackint
Opened: Dec 29
Author: mweinelt1
URL: https://gitlab.gnome.org/GNOME/polari/-/merge_requests/172
gnome-bluetooth - settings-widget: hide unkown devices from bluetooth devices list
Opened: Dec 28
Author: eduxstad
URL: https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/merge_requests/36