Way too advanced for me. Haven't touched upon those sorts of things :P
I also like that OS integration, particularly for file management. Browser based file management is a cancer. :D
I can get around it by hosting something like nextcloud or whatever on my unraid box, but if I'm paying for Office 365 (excel is kinda a necessity, even though I made my budget web-app), I may as well take advantage of its included "cloud" storage - and I do!
It is just fumbly and awkward to do that on linux.
So you're not a fan of Konqueror then? XD
Doing some insane Excel wizardry that LibreOffice can't touch yet? I know there's a LO office app for Nextcloud but no idea what state it's in.
It's entirely possible the fumbly awkwardness is a purely innocent competence thing but I usually have conspiracy theories that it's all part of the vendor lock-in ploy.
Funny, I use knoquerer on my unraid box, but I much prefer seeing directories visually with icons and previews :P Particularly for images!