Still a bit of issue on desktop view with TrueNAS-12.0-U4 with the plugins list (although better for the jails list).

I'd like to be able to see more than 2 lines by scrolling down the page and having a bigger box (with no scrolling within it), not having to scroll within the the list box - a lot of screen real estate is being taken up by the giant plugins header and batch operations bar when items are selected 

12.0 PR: https://github.com/truenas/webui/pull/5419

Ref:
It is so annoying that it is trying to paginate even there is a lot of space to show all items.
View is really broken if you select any jail and it is even broken in Mobile view ....

Adding to this, because I was going to file a bug then found this one, which is essentially the same issue.

Generally, the Web UI should not force panels to be full width beyond a certain point. If cells have adequate padding/margin, then we can set a max padding/margin, or a resizing right column, to take care of the rest.

In my case, see the attached cron jobs image, on my 3840x2160 monitor. To edit a job, theres this tiny weeny arrow... riiiiight at the very far right side. And HYYUUUUUGE column widths that make it a pain for the eye.

There's just no need. On all screens, add appropriate margin - and if the resulting panel is half a screen width, let it be half a screen width.