@Sniper9 covered a few things, here I'll try and cover the rest.
Answering issue 1: the only reason your tongue twists off center is because your foot is moving / rotating in the boot. For an outward twist - as you put pressure down on the ice the foot turns inwards in the boot, as you lift your foot off the ice the foot straightens up in the boot and it drags the tongue with it ergo tongue twists to the outside. The reason why your foot turns inwards? Pronation.
Answering issue 2: Again, your foot is rotating inward in the boot and as part of this rotation the inner ankle bone presses hard against the side of the boot. If the ankle bone is not sitting in the ankle pocket then its pressing against the shell of the boot instead of a cushioned pocket. The easiest way to fix this is to get the boot punched in that spot. Get some lipstick, put it on your ankle where the damage is, put you foot into the boot and press the ankle bone against the side of the boot. The lipstick will transfer to the boot and now you can take the boot to a pro shop and ask them to punch right there where the lipstick mark is. Could the tongue be causing it? It's possible if it is bunching at the edge and causing a hard point that the ankle bone is resting on but the damage is on the underside of your ankle bone and that is where the bone will rub against the side of the boot as the foot turns inwards in the boot.
There can be multiple reasons why you are experiencing these issues in these boots but you may not have had the issue before. I suspect fit is a big point, earlier boots may not have had as much volume as these so there is more room for the tongue to move. Or a much thinner tongue. Or previous boots had softer rear quarters so the pressure on the ankle bone was less. Or the holders may be mounted more to the outside of the center line of the boot causing you to pronate more (the foot rolls inwards more) - the difference in the holder placement can be as little as 1mm to create a big difference in pronation. The superfeet are higher in the heel and this can push the ankle bone out of the pocket, it's the one downside to superfeet especially if your ankle bone is not sitting in the mean average spot of most scanned feet in the manufacturer's database. (those of us with narrow feet often suffer from this). Or the boot overall is slightly wider, you just don't notice it due to the different new padding but as this padding compresses your foot is getting more room to rotate / pronate. Or a mix of any of the previous points.
Can I fix it? Yes but there is no simple fix everything cheap answer.
- Simplest fix is to get your skates punched for your ankle bone and tape your tongue in place. This addresses the issues but not the root cause, pronation. Over time your skates will break down quickly because your foot is rotating in the boot.
- The next fix is to go and get fitted for high end skates. The extra stiffness in the side walls will provide the ground force resistance needed to help keep the ankle straight and reduce your pronation. Punch the ankle pocket if needed. Your tongue will still most likely twist to the side slightly. if this really bugs you you can get lace guides glued / stitched to the top of the tongue that you thread the laces thru and this helps to keep the tongue straight. When your boots start to go soft and open up on you, and they will because your pronation is causing the ankle bone to press heavily against the inside of the boot, buy new skates.
- If your skates are a perfect fit you can try mechanical interventions to reduce your pronation - shims, wedges, posts, orthotics and or holder movement. But again, the boots have to be a perfect fit otherwise none of these will work very well or not at all. Downsides to this approach is cost, transferability and effectiveness. You can't just swap it all to a new boot, each boot basically needs to be another custom fit and a new set of costs. And whilst all of this will help you for a straight line glide and a mild edge (aka figure skaters), none of it will help when you get deep on a turn under power or accelerating hard (aka hockey players).
- Or my approach, fix your pronation thru a simple off ice exercise, commit to it over time and as your pronation reduces all of these issues go away and your skating gets much better. I've done a post in this forum about the exercise, link below. I've also done a comprehensive doc about the exercise and pronation in skates but it's too long to post here so message me if you want it.