Husqvarna is backed up 3 to 6 months
depending on the part, they also had to close a plant due to current economic conditions and governmental push toward battery-powered-everything.
My local STIHL dealer is also seeing out-of-stock on chains, bars, glasses, and saws that I know of.
ECHO seems to be doing mostly fine, though their best technology is 30-year-old pro-sumer stuff, which is great they're filling the call for non-electronic saws that can be fixed without a computer, and have full Parts Lists available to everyone on their website--right on the saw promo pages!
I don't blame the saw companies for the economic climate that's been developing for the past 70+ years, that's our own doing.