Facade insulation, effects on windows, roller shutter box and attachments

Hello,
for our conventionally built house from 1992, I am considering external wall insulation including new windows. This is completely unclear to me in detail, so I would like to ask:
As far as I understand, with external wall insulation, the new windows are installed further out, flush with the old plaster. However, regarding the roller shutters, this not only means that the old guides must be removed and reinstalled on/in the insulation. Is that even possible? And what about the roller shutter boxes? Installing new roller shutter boxes in front of the old ones is not feasible because the insulation is "only" about 15 cm thick. But removing the old roller shutter boxes is also not possible or would cause a huge effort and a lot of mess. Or how is this problem usually solved?
What about canopies, etc.? We have massive, tile-covered canopies above the entrance and above the terrace, the supporting structure consists of solid beams attached to the house wall (and of course vertical supports at the front end). Do all these have to be dismantled and reinstalled? Is it even possible to mount something like that on the insulation?

Yes, everything is fine. Get yourself an energy consultant and/or architect. They (hopefully) know what they are doing and will plan that for you.

Yes, everything is possible.
Get yourself an energy consultant and/or architect. They (hopefully) know what they are doing and will plan it for you.

If I wanted to incur costs blindly, I wouldn’t ask here. First, I want to be reasonably informed myself, then I entrust myself to so-called experts. In the case of the heating system, I have seen in hindsight (and now with the example of the heat pump) that you must educate yourself sufficiently and not rely on so-called experts.

As far as I understand, with facade insulation the new windows are installed further outwards, flush with the old plaster.

You can do that. But it is absolutely not a must. It is just as common to leave the windows where they are.

If you stagger the windows, I would also redo the roller shutter boxes.

The canopy would probably have to be dismantled. How to reattach it without thermal bridges will surely be told to you by the energy consultant.

What about canopies, etc.? We have massive and tile-covered canopies above the entrance and the terrace, the supporting structure consists on the house side of massive beams screwed to the house wall (and of course vertical supports at the front end). Does all of this have to be dismantled and reassembled? Is it even possible to mount something like that on the insulation?

1. Leave it as is and insulate around it. Not professional and may look bad. But it works with small thermal bridges.
2. Remove, insulate, re-screw. There are suitable fixings for almost everything (in some cases also energy-appropriate). If there are thermal bridges after all? A few screws on 259 sqm (?) of facade area you can consider non-existent.

Option 2 will be done by any professional company. Option 1 rather DIY.