Let's look at the GL Montreal - Boston route. It ran 4 times a day, driver change at Burlington Airport, much patronage there.
Today, post pandemic, 1 bus a day, no Burlington Airport, curbside stop adjacent to the city bus station.
This outfit is far more self-destructive than Amtrak, bus equivalent of Sears Roebuck, has no idea where the business is, and has been going out of business since the early-1980's. It now seems to be run it down to one bus a day, cry driver shortage, cut intermediate stops, then turn it over to Flixbus.
GL is following Greyhound Canada, which no longer exists. Covid was the excuse to kill the last of it east of Sudbury. At least Ontario Northland runs one bus a day to Winnipeg, overnight Toronto - Sault Ste Marie. New York Trailways picked up the pieces for Toronto -Detroit after a no-service hiatus. That's a long ways from their HQ near Kingtson, NY.
We are basically going back to the 1940's of a segmented national bus sytem before Greyhound stiched eveything together with acquistion of independents.