Various bugs in network part of GNOME settings

[TR_SLimey]

1) "Turn On WiFi Hotspot" is greyed out in the 3 dot menu when opening GNOME settings directly on the WiFi tab. However, switching to a different tab and back fixes this. When hovering the mouse above the greyed out "Turn On WiFi Hotspot", a tooltip says "System policy prohibits use as a Hotspot".
See also: https://askubuntu.com/q/1236823/801743

2) Deleting a route in the settings window for a particular network makes the settings window for that network blank until re-opened. To reproduce:
 - Open GNOME settings on WiFi tab
 - Click gear icon next to any WiFi network
 - Add a new IPv4 route
 - Close the window
 - Re-open the window
 - Try to delete the route

Expected result:
 The route is removed and when clicking "apply" it is gone permanently

Actual result:
 All the widgets on the window disappear and the route is not removed permanently when clicking "apply" so it can be seen again when re-opening the window.

Details:
 - Ubuntu 20.04 with all updates applied

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-control-center 1:3.36.2-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jun 14 12:36:56 2020
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2020-04-25 (49 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1879122 and bug #1875022. Please look at the other bug reports to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.