LF cameras can be said to be "necessarily archaic".
Oddly enough some of the most efficient film options like pack film and Grafmatics are long out of production, so we now have the choise between "archaic" double sheet film holders ("dark slides") and the not-much-better quickloads. One classic double film holder takes two sheets; if you need more, you need more holders.
Easy loading, shooting and removal of film are said to be the benefits of quickloads. I've never tried them, and am perfectly happy with ordinary "archaic" double film holders - loading is easy with a little practice, shooting is just the same, removing the film from the camera is certainly no more difficult, and unloading the film is even easier.
"International backs" are the de facto standard, and only a few very old camera don't have them. Many camera have Graflock backs, which are an advantage for (some) roll film holders, (some) digital backs, (some) reflecting viewers and suchlike. It's not necessary, but can be nice.
In use there is not much difference (except size) between my most modern camera and the other one which is virtually unchanged since 1900. I even use the same lenses on them - and on a camera which really was made around 1900. Some of the lenses are the same age, and some are brand new (less than a decade old, at least). To me part of the advantage of LF is the almost complete compatibility of everything over a period of a century or so!
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