Supervisor notifications stopped showing in HAOS

Recently, after major core update in December I noticed that Supervisor notifications stopped showing. These are notifications you get when, for example, an automation is not set up properly.
I see these in the core log but they do not pop up.
Moreover, if I try to look at the supervisor log, it does not show up and the hole system starts to lag dramatically. Only a reboot helps in this case.
It seems like the supervisor is working, since the updates are monitored and coming
Here is the system info

## System Information

version | core-2023.2.3
-- | --
installation_type | Home Assistant OS
dev | false
hassio | true
docker | true
user | root
virtualenv | false
python_version | 3.10.7
os_name | Linux
os_version | 5.15.61-v8
arch | aarch64
timezone | Europe
config_dir | /config

<details><summary>Home Assistant Cloud</summary>

logged_in | false
-- | --
can_reach_cert_server | ok
can_reach_cloud_auth | ok
can_reach_cloud | ok

</details>

<details><summary>Home Assistant Supervisor</summary>

host_os | Home Assistant OS 9.3
-- | --
update_channel | stable
supervisor_version | supervisor-2023.01.1
agent_version | 1.4.1
docker_version | 20.10.18
disk_total | 116.7 GB
disk_used | 45.2 GB
healthy | true
supported | true
board | rpi4-64
supervisor_api | ok
version_api | ok
installed_addons | File editor (5.5.0), MariaDB (2.5.2), Mosquitto broker (6.1.3), Samba share (10.0.0), Terminal & SSH (9.6.1), Zigbee2MQTT (1.30.0-1), ESPHome (2022.12.8), Rhasspy Assistant (2.5.11)

</details>

The ha supervisor info command gives info on installed addons and repositories properly

Please advice how do further diagnose the problem and return back Supervisor notifications on errors in automation/scripts?

I can’t say for sure but I don’t think this is related (or maybe it is and it’s just an indication of a broader problem…).

I don’t run a Supervised install and I still have this issue.

see here for additional info: