Gnome Network Manager GUI does not save routes

As in the title. I enclosed the recording adding the route to the connection via GUI. Does not matter whether that is Ethernet, VPN. Fails everytime.

On the other hand adding via CLI works perfectly

mastier@drakkar:/etc/NetworkManager$ nmcli connection modify netplan-eno1 +ipv4.routes 123.123.123.123/32
mastier@drakkar:/etc/NetworkManager$ echo $?
0
mastier@drakkar:/etc/NetworkManager$ nmcli con show netplan-eno1|grep ipv4.routes
ipv4.routes: { ip = 123.123.123.123/32 }

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: network-manager-gnome 1.24.0-1ubuntu3
ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-38-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 13 10:12:00 2023
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.36.6 connected started full enabled enabled disabled enabled enabled