Well... You know... It's kind of.
Just search for "amd hdmi 2.1 linux" to get full story.
In short - AMD wrote an implememtation for HDMI 2.1 standart for Linux driver, but it requires approval from HDMI consortium. They (consortium) denied it, so AMD couldn't ship it.
I never said that it is a virtualization. Yet for easy understanding I named created namespaces "virtualized". Here I mean "virtualized" = "isolated". Systemd able to do that with every process btw.
Also, some "smart individuals" called comtainerization as type 3 hypervisors, that makes me laugh so hard :)
Vikunja is the only viable thing. CalDAV spec allows to assign tasks, but we got XMPP moment here - spec exists, but almost no apps implement it properly.
Also you may take a look at https://github.com/awesome-selfhosted/awesome-selfhosted#task-management--to-do-lists
Syncthing is a sync utility wich is different from a cloud service. They both have different purpose and are for different tasks.
They all do one thing - syncing files. And less painful implementation done by nextcloud, at least for me.
Using Caddy for couple of years already at home, yet using certbot at job, because of requirements to use nginx as balancer.
Whatever.