Yeah it's funny how it was possible to scope creep into an entire world but not possible to rename it "Tamriel" or something
It's a game called Arena with no arenas in it. Yeah, Elder Scrolls: Tamriel would have made a lot more sense.
I played through all of that game in the past, and while it does have the entire continent, it's much much smaller in scope than Daggerfall. Each province has like 10 areas of note and the rest is just like procedurally-generated fill-in space to run across (which there's no point in doing when you can just fast travel anywhere on the map). Compared to, say, the Skyrim we get in
Skyrim, ES1's version of Skyrim is empty as hell.
Cyrodil only has one location in it (the capitol) and the rest of the province is entirely inaccessible, as well. Don't expect Elsweyr or Valenwood to actually look like they're "supposed to" either, because all the areas are pretty much the same. Elsweyr might have snowy zones, Valenwood might have desert zones. You'll find the same variety of biomes in each province and it's all very cut and paste. The main difference between provinces is the background / sky layer (for example, Morrowind has the volcano off in the distance for the sky layer).
The main point of Arena is to run two dungeons in each province. You talk to specific NPCs in the province capitol, get a dungeon added to the map, run it, get a second dungeon added to the map, run that, get a fragment of a staff. This happens in every province, I think, with the capitol being the final dungeon that you can go into once you've beaten the dungeons of the other provinces. It's not that dissimilar to an early Zelda game in that regard, in that the only things you really need to do in each province are talk to some NPCs and hit the dungeons, then off to the next province to do the same.
Daggerfall covers like 5% as much "land area" map-wise but it has a vastly bigger world, a zillion more locations, much larger locations, actual traversible terrain with things in it, etc.
I actually preferred Arena when I played the two of them simply because it worked better. Daggerfall was bigger, more interesting, had better character creation options, and nicer graphics, but none of that mattered when it was a huge glitch-fest that I had to restart multiple times. Most of that is ironed out with newer versions of Daggerfall that you can download online (I insisted on playing both of them off of disc, 90's style, at least until I gave up on that midway through ES2).
Putting aside that ES2 already covered Lilac Bay, I really hope ES6 includes both High Rock and Hammerfell in their entirety. It's such an interesting location(s).
Arena was a good appetite-whetter for seeing all of these locations fleshed-out and filled-in via later games. Would be cool if we ever actually get full games for Valenwood/Elsweyr/Summerset/Black Marsh. Valenwood in particular is my favorite province for a variety of reasons and it's never gotten its own game. Would also love to see a Morrowind 2 that covers the other 60% of Morrowind that isn't Vvardenfell, using similar design elements and biomes. All of that seems like a pipe dream at this point though.