Greywolf1: Nice summary! Although I myself prefer Morrowind, but that's a personal sentiment - I don't like the too similar and too convoluted Daggerfall dungeons - too exchangeable and "un-immersive" for my taste (which includes, to a degree, the hand-designed main quest dungeons, too, as these use the same building blocks and structuring philosophy). Of course, there are navigation strategies, and I can use the cheat teleporting me to the most interesting places of a dungeon (with no safe way back - with that said: I'm aware of the "Recall" spell). But I don't like to play in this way.
To save before you accept a quest makes sense for Daggerfall, due to the huge difficulty variation of these quests. And that the game can't handle more than 6 savegames is an issue.
But why don't you simply use several different savegame folders (holding 6 savegames each) to swap savegames manually in and out whenever it's convenient for you. Either have (at least) one savegame folder for each character you play, or have one savegame folder with the most recent savegame for all your characters (which limits the number of savegames you can operate with simultaneously) and a few backup folders for older saves. It's more effort than simply saving and loading, but still acceptable - for me at least (I use one or more folders for each character, as I don't play more than one character in parallel during a single game session).

Greywolf1: Not quite. Here's a quote from the patch notes:

ALT-F11 - If you fall into the void, pressing this will take you back
to the previous object you were standing on. This can help you get
out of the void when you fall into it.

dtgreene: When you press Alt-F11 the game will warp you to the last place it remembered you being on land. (It might actually only remember when you last *moved* while on land; this distinction does matter in this case.) When you load a save, or when you start a new game, the game has no memory of where you last moved on land, so if you press Alt-F11 right then, so it just teleports you to the dungeon entrance instead.

Greywolf1: Thanks - I never even considered to use Alt-F11 in the starter dungeon.
Here is something I found on UESP: "When you want to get out of a dungeon fast and don't have the teleport spell, save your game. Then, reload your game, do not move, and afterwards use the alt-F11 half-cheat."
You know probably that you can skip the starter dungeon completely (startmap, region, and "mapfile a", if you want to start outside of a dungeon). I don't know if this impacts the main quest in any way.

Gugnihr: ... music sounds different than what I was used to.
...

Greywolf1: You may try DaggerfallSetup or use the information there: [url=https://en.uesp.net/wiki/Daggerfall:Files]https://en.uesp.net/wiki/Daggerfall:Files[/url] (search for music).
There is also a music remaster project: https://forums.dfworkshop.net/viewtopic.php?t=921.