Dai side quest are horrible there is almost no interaction with quest givers and people involved in quests, interaction is limited to only taking quest and receiving reward with no room to rp and choice, on top of that side quests are not very interesting.Previous DA games in contrast allowed you to interact with many quest givers like sympathizing with them or just be unsympathetic toward them, same for other people that were involved in quest but game also allowed you to end quest in multiple ways.
The only exception to that in Inquistion are companion and adviser quests and that is less than dozen somewhat engaging side quest, what is less than skyrim that had nice amount interesting side content like guilds , civil-war and Daedric quests.
I disagree on Skyrim- found it very dull as a game and couldn't finish it- but otherwise, yes, the only "side"/optional content in DAI that's up to the standard set by TW3 are the companion/advisor quests. Or at least they're the example of what Bioware did right in providing content for DAI's encounter experiences. If they'd left out all the hours and hours worth of other drudgery (that so many of us do anyway) and just extended those quests further, it would've actually been a fuller game that never seems to drop the ball on content. The only comparable smaller-scale side adventure that exists in DAI outside the companion/advisor ones is the brief but quality encounter in JoH called "Loss of a Friend" where you actually get an adventure, a cutscene, a fuller interaction, and a meaningful choice that will depend on the sort of character you're roleplaying. And that's it. The rest of the side-quests are filler.
So the argument isn't "But I'm a completionist. Please cater to me!" The argument is, "If you're going to make content, settle for no half-assery." If the content in non-essential questing is high quality, engaging, and meaningful for the player's/character's experience, even a non-completionist might be intrigued to explore all you've created. If it's a matter of limited resources that they couldn't make the plethora of smaller-scale quests more than mechanical busywork, fine: then don't do them! Or just scale back on them to the extent that enables you to give them the proper narrative strength. It's not enough to just say, "Well, we couldn't do more of X, so here's x-lite." I doubt anyone would've faulted the devs for providing less empty hill combing and more interesting content (at least not anyone who's putting quality first). Unless the devs were intentionally going for a more MMO-like cheap-and-easy encounter feel, in which case making the main campaign multiplayer might have helped. But the DAverse is narrative-rich, not lending itself well to Assassin's Creed repetitiveness where you do one mission, feels cool taking over a ship or knifing two unsuspecting guards simultaneously, and then you're told, "Now just do that same formula for the next 40+hrs." It's similar in DAI. "Ooh! Spooky mansion to explore!" Busywork happens, then kill a sub-boss."Next!" A lot of anti-climactics are built into DAI's repetitive side narratives. I'm not even a fan of DA2, but even there you had side-quests that never felt half-assed the way DAI's do, and DA2 was rushed!
I hate that I'm now finding myself saying, at least regarding side-quest construction, "Be more like TW3." It'd help anyway, and it's really the sort of thing DAO already did, just on a smaller scale than TW3 did. CD Projekt is simply "doing DA's thing" better than Bioware at this point. But short of emulating TW3, go back to your own roots. BG1 was chock full of really short side quests that were nevertheless memorable, imaginative, and very worth getting involved in- many not letting you not be involved if you stumbled into them- and most of which helping the player decide just the sort of character they were playing. A great DA4 can be made that way without even attempting to "do TW3." I'm pretty sure BG1/NWN/DAO/DA2's side quests weren't anywhere near as elaborate as TW3 stuff (haven't played it yet to know), but that's far beyond the colorless, purely-mechanical encounters we're getting in DAI's backwoods. For me it stifles DAI's replayability: do I have the stamina to stomach so many more hours of half-assed content to manage another playthrough? Just being honest...