There are no control decks in the top end of the Stormwind meta, Blizzard professionally killed off that archetype.
If you think a deck is control because it has 1 removal card in it, i don't know what you've been doing in all those mtg years you claim to have had....
The single deck that has a control style play is Quest priest and that one is currently low tier 4.
Please look at https://hsreplay.net/meta/ and tell me any control deck that is in tier 1 or 2. Hint: there isn't, it's all aggro, midrange or combo decks.
Quest Shaman is a control deck through and through.
When you say "or combo decks" at the end, it shows that you don't even understand the terminology. There's no "or." A combo deck can be aggro, midrange or control, depending on how it behaves until it achieves the combo.
Quest shaman is not a control deck, at all, it's a classic aggro/burn type deck. I think you are the one not understanding terms here.
Combo just aims to get to their win combo in the fastest way possible, in HS this usually resorts in exorbitant amounts of carddraw, now with the quests added into it. Control decks, in the terminology that has been established since the early days of MTG, are purely decks that aim to outlast/outvalue everything the opponent does until they can start putting their pressure up or wining through fatigue.
A Combo deck is not midrange, aggro or control. a combo deck is a combo deck and it's solely build on a draw engine to enable firing off the combo as quick as it can.
No, a control deck controls the game until it can achieve its win condition. That's literally where the name comes from. It cannot outlast anything unless it takes control. In Hearthstone, that usually means controlling the board. Quest Shaman does this through removal spells and some minions. An aggro burn deck would not bother with minions on board because it hopes to burn the opponent's face off before the opposing minions can win.
And also, no, if you think combo is an entirely separate category unto itself, you have NO idea what you are talking about. All "combo" means is that the deck exploits a massively strong synergy of some type as its win condition. This affects its play style but does not solely define it.
If there's no such thing as aggro-combo or control-combo, you need to ask yourself why there are so many articles written about these different types of combo decks.
You have absolutely no idea what you are on about do you? Quest shaman doesn't play removal spells, it's main win condition is putting said spells at the opponent's face. The literal only small removal it has is perpetual flame. A lightning bolt that does 3 damage is not a control spell, it's a burn spell. It does not play any big removal, handles big threats very poorly and generally tries to kill the opponent before the opponent kills it. It's the absolute pinnacle of aggro.
Please go read some articles on what combo means too, you have no idea what it entails.
I can only speak for how combo, control, and agro are defined on this website. savarunl is right that we usually separate combo from agro, midrange, and control. There were times where the definition was dicey like non-OTK shotgun priest but control generally doesn't kill from rely on killing from hand over 1 turn or a couple of turns. The purest example of control might be the warrior deck that copied its hand infinitely in order to never run out of cards and simply removed every threat. Decks that play all their cards until they get too a kill combo are considered combo decks. Mechathun decks and Druid Togwaggle were combo decks.