Cannot change screenshot directory

Expected:
Be able to change the directory where the screenshots are saved, either from Settings (GUI) or from gsettings (cli).

What happens:
Screenshots are unconditionally saved to the Pictures directory (XDG_PICTURES_DIR).

Temporary Workaround:
Use a specific extension: Screenshot Locations (https://extensions.gnome.org/extension/1179/screenshot-locations/)

Previous discussion:
The bug was previously reported 5 years ago on bugzilla 699642 (https://bugzilla.gnome.org/show_bug.cgi?id=699642) and closed as WONTFIX.
I'm reporting here again, as I hope the time is ripe for a reconsideration, given how many users are affected and willing to see this solved.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-settings-daemon 3.28.1-0ubuntu1.1
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: communitheme:ubuntu:GNOME
Date: Fri Mar 1 19:50:31 2019
InstallationDate: Installed on 2019-02-03 (25 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gnome-settings-daemon
UpgradeStatus: No upgrade log present (probably fresh install)