Is it possible to glue floating parquet flooring afterwards?

Hello everyone,
we renovated a house last year (or are still partially working on it). You get wiser in many things with such a project and would do some things differently.
One of these things for me is the floating parquet floor. We installed plank flooring measuring 2200x180x12cm floating on a layer of impact sound insulation. We had the problem that in one room the screed was a bit higher, so it was somewhat underpinned with impact sound insulation to reach the same height. That’s not even what bothers me. What bothers me is simply that the floor, especially in the hallway where you walk all the time, creaks. Mainly at the transitions from one panel to another. Presumably, the subfloor was not even enough; I had thought you could balance that out a bit with the impact sound insulation.
Now I’m wondering if it’s generally sensible and possible to take the parquet out again and glue it down afterward. Would I need to apply leveling compound on the screed in advance to really get a completely even, flat floor? Or is it sufficient during gluing as the boards will be firmly glued anyway?
In the area where we previously angled the impact sound insulation a bit, I would probably have a friend who is a tiler smooth it out a little bit diagonally.
What else needs to be considered? The skirting boards are glued to the wall; hopefully, they’ll come off so that they can be reused. The doors are not yet sealed at the bottom with silicone, so that should not be a problem. The transitions between rooms are covered with strips, which are also not a problem.
The question is whether it makes sense and if the effort is worth it or if I might make everything worse afterward ;)
I would possibly start with a small room (13m²) and try the whole thing. What are your opinions on this?
Oh, and please no advice like..."best glue it directly"......or "better have a professional do it directly".......Thanks ;)

out, compensate, bond. Have you actually already correctly recognized

And with that, the creaking should be over, or could it have other causes besides the missing adhesion?

And with that, the creaking should be gone, or can it still have other causes besides the missing adhesive?

Yes, it could be because a too soft underlay was installed there. Can you specify what type of underlay was installed underneath?
Another possibility would be that the subfloor is too uneven, causing the floorboards to stretch too much when walked on.

Hello everyone. For impact sound insulation, we used the following: Haro Visco Pro DS impact sound insulation with vapor barrier for parquet and laminate floors. We bought both together in one online shop.

Parquet layers learn their craft over the training period of approximately 3.5 years, followed by their journeyman phase. They learn what a proper substrate is, what is necessary to firmly bond the mineral leveling compounds to the substrate, and with long planks, they measure the wood moisture before gluing, as this material can expand significantly due to swelling pressure. For the bonding, they also learn, the correct angle of the notched trowel is required, with a change of the notched strip when it is worn down, so that the correct amount of adhesive can be applied to secure the parquet boards. All of this cannot be learned en passant from DIY literature! That is why my well-meant advice: leave such trades to the professional company, which can recognize the many pitfalls—unlike the DIYer. Spending more money in the right place can be the more cost-effective way. At this point, I only present the (case I handled at the time) where the DIYer glued parquet in his living room firmly by himself but left no expansion gap for aesthetic reasons. The parquet adjusted to the climatic room conditions (in one summer) and, due to swelling pressure, pushed the house gable on the outside wall side outward by 5 cm. As a result, a structural engineer had to be brought in. Although the floor was cut free, support measures had to be implemented in terms of structural stability. In the end, the building owner could have traveled to the Maldives with his wife during the time it would have taken a parquet company to perform the work, based on the amount now legally claimed against him. Not every trade belongs in the hands of amateurs! -------------------------- Well-meant advice: KlaRa