That's great for those already there. For those of us still partially stuck on .Net Framework it is anything but trivial.
And sure, upgrading from .Net 5 to 6 was trivial, but do you really anticipate it will now finally remain stable for eternity? Give it two or three minor versions and they'll have come up with something else to break 90% of your dependencies.
No, they are actually trivial starting from 3.1/5/6 exactly because of the work they have put in.