1) For our home, would total home replacement windows typically be done from the outside or inside?
2) Is it typical that a window installation contractor who installs replacement windows from the inside will not take down and put back plantation shutters that need to be removed before window replacement?
Background
55 windows, double pane
Home year 1990
Builder was Centex Homes Fox and Jacobs
1 octagon window in a bathroom
7 half circle shape
6 trapezoid shape
1 window has blinds (over kitchen sink)
40 rectangular windows have plantation shutters
Window Condition:
some windows have lost seal, 1 has crack on external glass, few get condensation dripping inside the window to the sill
Situation
We signed a contract for window replacement installation. (hiccup below)
Our contractor project manager measured the windows Friday 12/2/22.
PM needs until Tuesday 12/6/22 to type his notes and finish the detailed material order.
After visiting our home to measure, the PM will allow us to cancel the contract before he orders the windows because we have added work that was not disclosed before we signed.
The salesman did not tell us (before we signed or after) that we would have to take down all plantation shutters with their frames before installation AND later reinstall the shutters with frames.
This contractor installs a specific type of Pella windows that are very energy efficient. This contractor replaces windows from the inside.
On our house, the shutter doors are attached to shutter frame with 3 brackets using small 1” brass screws. The shutter frame is L-shape profile mounding on all sides with additional rectangular cross-section wood piece on top and bottom. The shutter frame is installed with finishing nails in the window opening.
My husband and I both work. We are not in a position to safely and quickly take down and reinstall an entire house of plantation shutters. Initially we received a quote for replacing all windows in the house and the backdoor.
Looking also for ideas and insight about the plantation shutters.
I feel sad, bummed because I was looking forward to an entire house of high efficiency windows, and we were willing to invest a great sum of money on these windows.

Thank you in advance - Maureen