Dooku pressing Yoda with Lightning and then Deflecting his own Lightning when Yoda sent it back at him could very well match Malgus's feat of wrecking the Jedi in Deceived.
Though the feat where Malgus staggers the Strike Team with Lightning in TOR is definitely not something Dooku has replicated.
Why is it not his style to toss around opponents? He ragdolled 2 Jedi I know. He is very direct with his force attacks and "unpredictable" is not a word I would use for him.
On the other hand, Malgus definitely has a more unorthodox usage of the force. Where Dooku is a classic TK/lightning sith, Malgus has additional force attacks like maelstrom and scream.
And while Dooku is clearly the superior duelist, I doubt it will give him the victory since Malgus is good enough to hold his ground and even use Dooku's disadvantage of lacking against duelists with great strength to push him back.
1. It is in most scenarios, particularly if the fighters tend to duel. Malgus does sometimes abuse the Force, so it could be particularly disruptive for Tyranus's fighting style, but probably not utterly game-changing. Could it be game-changing alongside his strength edge? Possibly - that's what should be argued.
2. In terms of Force? I agree. But Tyranus has a pretty noticeable skill edge, and Dooku's fight with Yoda is to be taken seriously regarding some of its elements.
It depends. In Malgus' era, jedi/sith focused more on power than skill where in Dooku's era it is the opposite.
That was my argument in the first place.
Yoda managed to disarm Sidious, who utterly humiliated Maul and Savage at the same time. Sidious would have an easier time with Dooku so I don't see how Yoda couldn't trash him given his other feats.
In RotS Dooku's Force push and choke were unpredictable enough for Kenobi to even attempt to block it. Kenobi demonstrated that, when ready, he can put up a block even against Anakin's TK. Of course there are cases, where Dooku used Force attacks without an element of surprise too.
You never brought up a single quote from that "number of sources". You only mentioned junior novel but then I checked it myself and there is no suggestion that Yoda held back.
1. Again, doesn't contradict with what I said. Both eras obviously had force users that focused on each but it is clear that TOR found power more important and PT Jedi were focusing on skill more than power.
Imo, TOR Sith being very capable in the force made the Jedi adapt and become alike where in PT the jedi were so skilled with the lightsaber that the Sith had to improve them selves to keep up even though they didn't care for dueling as much. Being very powerful in the force and very skilled in dueling at the same time is one of the major reasons of why there are so many RoT Sith in higher tiers.
I doubt that was possible purely cause of unpredictability tbh. Dooku's force feats far exceed Kenobi's so I'm not surprised that he was able to TK him that easily. But even if it was, Malgus did something similar to a far more powerful opposition and I really doubt this would give Dooku any advantages.
In AotC Kenobi blocked Dooku's lightning without any seeming effort. In last TCW fight Kenobi blocked Dooku's TK as well. Clearly Dooku cannot simply Force handle him when he chooses to, there needs to be an opening for that.