I like the look of this one. Similar size and weight to the venerable Akto, but free-standing and a little roomier (probably a little less robust, if you're planning to pitch on the Knavesmire or a Scottish clifftop in a hurricane or similar). And none of that USAnian ventilation silliness.
They mention several times that there's room to keep a rucksack inside. In the video they then say this means in the vestibule rather than in the tent itself. Though I guess again this depends whether you're using it with one or two people (not to mention how big your rucksack, panniers, or bikepacking bags are).
Anyway, this seems advantageous to me, in terms of rain, animals, finding things you suddenly realise you need in the night, and in some circumstances theft. And yet it seems like a thing that people often don't do, even if they have space inside. Is this campers' marmite or something?
My usual approach is to bring the panniers into the vestibule, rather than into the inner tent. That way they don't get things wet/dusty.
The contents of my rear panniers (tent, clothing, sleeping stuff, etc) is mostly in stuff-sacks, which get moved into the inner tent. The panniers themselves can then lie flat, or be used to keep critters from getting at food. My front panniers mostly contain the heavier cooking and cycling-related stuff, which stay easily accessible in the vestibule, should I feel the need for a midnight snack or want the sewing kit for something.
If it's pissing down with rain and there's minimal risk of theft, I might leave the empty rear panniers attached to the bike. Brings less wet stuff into the tent, and gives them an opportunity to dry out later.
There might be an Ortlieb vs Carradice factor, vis not wanting to place porous luggage directly on wet ground? Not an issue if you have a footprint covering the ground inside the vestibule...
Rucksacks presumably stay cleaner than bike luggage. Especially if used with a waterproof cover. So bringing the whole thing inside makes more sense.