Closing screed gaps - What would you recommend to me?

Hello everyone,
We have now been living in our new build (semi-detached house) for about 10 months.
In all rooms, we have had floor coverings (tiles, laminate) from the very beginning except in the utility room, where we still have the bare cement screed (room without heating).
Since dust sticks to our shoes or socks every time we walk through the room, we now want to do something about it in this room as well.
We basically only use this room for hanging laundry and storing drinks.
Since we don’t really use this room, we wanted to solve the dust problem as cheaply as possible and thought about a 1K garage floor coating from the company Will…. (I don’t know if I’m allowed to name brands).

The problem I have now noticed (see attached picture) is that in our utility room there are empty conduits with various cables protruding from the screed in some spots and definitely the screed is missing around these conduits. So my question would be how would you solve this? Shorten the empty conduits and lay cable channels and then fill the screed gaps with screed? Or do you have another suggestion/idea?
Also, the screed was poured in two parts, so in the middle of the room we have a transition gap about 2-3mm deep. I could probably simply seal this with acrylic, right?

Before painting, of course, acrylic primer will be applied to the cement screed.

Thank you very much
Best regards

You could first cut off the blue edge insulation strip flush with the screed all around using a knife. I would leave the empty conduits attached. Do the cables only run along the wall? Then simply pull a larger cable duct over them there, do not fill the hole with screed or repair mortar or the like, it’s not necessary. If it bothers you a lot or large gaps remain, fill a bit with repair mortar here, but do not fully mortar in the empty conduit.

For floor coating you can use garage coating, then the whole thing is easier to clean if accidents happen with your oil reserve or other chemicals. Don’t have that? Floor paint for cement floors is also sufficient if you don’t want to drive through the utility room with your car.

At the screed transition: Only a 2-3 mm recess, but the screed is otherwise connected? Then nothing moves here either, you don’t need to put any acrylic in. Either leave it as it is or smooth it out with repair mortar. Of course it is a predefined breaking point in the long run, but acrylic won’t help there either. In addition, the floor paint can come off the acrylic due to the flexibility of the acrylic if you regularly walk over it.

I would put a large cable duct on the wall to manage the cables. The gaps there are really so small, it’s not worth the effort.

Otherwise, really no cheap 10€ tile? That would also permanently conceal the trowel cut between the screed pieces. Any acrylic solution is not permanent, and leveling with leveling compound probably looks really bad.

Thank you both. I will now buy larger cable ducts and solve it that way. How would you close the expansion joint if the edge insulation strip is cut off, since we want to paint including a small baseboard? Acrylic all around and form it into a cove?

Regarding screed preparation, our screed is really quite level, you have to say, and it is "only" being painted. Do you really think it is a MUST to sand the floor before applying the primer, then treat it with screed hardener, and then fill it? ... sounds like a lot of work for the individual steps.
I have attached 2 pictures where you can see the screed and the spots that worry me; the lighter one is really smooth but the darker one is quite sandy. I just don't know if the primer is enough to bind it.

I only swept the screed in our technical room with a broom, then applied primer and afterwards painted twice with floor paint. It is now a clean, smooth surface that is easy to clean. Fast and inexpensive :)