As a Bryston fan and long-time owner I can share the following for some background and context:
What happened to Bryston?
SoundStage! Hi-Fi | SoundStageHiFi.com - Bryston: How a Devastating Death Led to a New Lease on Life
2021 public announcement of relocation and some operational consolidations:
(1) Peterborough audio electronics company Bryston sold, relocating manufacturing to Muskoka area | Globalnews.ca
I relatively recently had my 4B ST amp restored by Bryston. It was a very good experience and was previously described by me here:
https://forum.audiogon.com/posts/2554910
I have found Bryston staff responsive and very helpful. Responses never came the same day but usually within a couple of days.
Bryston, like several well-regarded legacy audio manufacturers, has faced the challenges associated with the passing of time and founders.
Also, like some audio companies, Bryston has always maintained a somewhat low- key presence. Anyone heard anything about Quad lately?
Hope this helps.