I just found out on the Internet, that if the first two dlcs will be successful, more expansions will be planned.

Owlcat plans their expansions before the base game is even done. That's just corporate speak for more DLC IS coming, but don't wait for it, please buy what's available now.

No, I'm saying that the decision to put out more DLC was already decided and has nothing to do with the sales of prior DLC.

That's an overstatement. Content, that wasn't ready on release yes, but new content ... why invest time and money in failed project? Look at Dawn of War III. I'm sure many dlc's were planned, but the game wasn't received well (and for good reasons), so they cut expenses and cancelled them.

Good devs aim to make a finished, well-optimized and (mostly) bug-free game at launch, not a bug-fest AND planning DLCs even before game launch. But because there are some people that will excuse ANY faults and defects, some devs will continue to cook up botched jobs - one after another.

The key word is "used to make". Nowadays, no matter how large a budget is, the game will still be released as unplayable bug mess (BG3 with budget of several games was still a buggfest after prologue which was available as early access) to make it available for Christmas / New Year / summer hollidays etc.. Currently quality control is quite expensive and if players still buy bugged games, why spend so much on it? Players will catch up all bugs for them ...
My rule of thumb is: buy a game (to support developers, otherwise wait a year for discount :) ), play for some time, wait a year, enjoy the game.

My point exactly. That's why the real problems are not the devs (that too...), but modern ga(y)mers - first and foremost. The fact that they tolerate such bad quality from devs is exactly the reason why devs get away with it. This is the problem.

And I can understand a situation where you have a small indie studio without a big budget - and they need to get by somehow. But if somebody from Larian said: "We don't have money for quality control", then - excuse me - I just don't find it in my heart to believe such nonsense.

Owlcat (it's my impression) is the new Piranha Bytes. Game after game - they repeat the same mistakes all over again and learn nothing.

That statement is false, as Pasqal would said :) They have developed three games (Rogue Trader and both Pathfinders), but they are also a punlisher for smaller studius.
As for the games themself, they were bugged at the release, but Owlcat constantly patches and improve them. All their games are perfectly fine now.

It's not just about the bugs.

Namely?

I'm talking about Pathfinder
1. Timed quests (with hidden timers)
2. Completely needless woke content
3. Needless difficulty spikes
4. Too many fights (proportion-wise) - Baldur-like cRPGs are not meant to be hack'n'slash.

1. Only present in first Pathfinder. They have learned that lesson.
2. Everything is according to Pathfinder lore (no wokeness added).
3. Nothing unusual, BG2 also had dificulty spikes.
4. Invalid argument, most crpgs are combat heavy (BGs, Arcanum etc.)

And I like their games for stron narrative (though Pillars of Eternity is better in that regard than first Pathfinder).

2. Yeah, I guess you're on point here. Thanks for clearing that up.
3. BG2 did, but it was never absurd like the Troll-king fight in Kingmaker.
4. Wrong. The fact that most crpgs are combat heavy is one thing. Whether the "combat-heaviness" is balanced by a strong story, non-combat events and non-combat quests is completely another thing. Icewind, for example, was combat heavy but the combat was never a slog - it was fast-paced and exciting.

In BG2 there were some absurdly high difficulty spikes. Like battle with Lich. He was unbeatable, unless you fought him with high level party with best possible equipment.
The reason you are considering Baldur's Gate series and Icewind Dale to be easier is due to predictable power curve of your party in DnD2 and 3. Characters combat effectivness was based on stats, class, level and equipment. Developers were able to predict party's power pretty accurately and give reasonable challenges. Pathfinder is heavy on class development, on choices made during levelling up. It's more on building your character around strenghts rather than trying to mitigate weaknesses. Equipment is less of a problem, because Pathfinder have absurdly high number of magical items. You can't throw a rock to not hit a magical item :) Starting the game you can choose to auto level all characters and have fun with reasonably built character. Or seek a tutorials on the web, where you will find a complete guides with starting stats, skill choices and even multiclassing through several different classes to gain even more fighting prowess.

And Rogue Trader takes character building, with its turn based combat, on even higher level. With initiative manipulation available to some persons and classes the combat can be resolved without enemies even moving.