@creation_aplogetics Is it possible to get through coat change without a shave down? Yes. Is it hard? Also yes.
My poodle mix had a relatively easy coat change and we still had to make some changes to the grooming routine. We did not need to shave her, but it did mean identifying the most likely matting points and preemptively taking them shorter. For my girl that was behind the ears, armpits, and where the thigh meets the belly. Took those down to about a 1/2" as well as her entire ear leather since that fur was so fine.
I saw your comment about chatting with your groomer, and that's honestly the best way to get through it. I'd book more frequent appointments for the next few months and be prepared to make changes to the grooming style each time if needed. That might mean compromise, I took my girl down to about 1" from her usual 2-3" length.
For daily maintenance, up the brushing to morning and night if possible. Focus on the high friction areas, make sure to line brush, use lots of detangling spray/serum if you don't already have it. Cowboy magic was a lifesaver for me. It did mean increasing the frequency of baths by a little bit, but it also meant the coat had a bit more "slip" to it and any tangles were easier to remove with diligent brushing/combing.