Evidence from Canadian provincial timelines shows that, within a few months of February 2022, essentially all provinces moved to lift most or all broad COVID‑19 mandates (vaccine passports, capacity limits, and general mask rules) on roughly the schedule Sacks implied.

• By mid‑February 2022, provinces and territories had already begun multistage reopening plans after the Omicron peak, including “eliminating the use of vaccination passports and vaccine‑specific restrictions,” reopening venues, and then gradually removing mask mandates in a majority of settings by early summer 2022. (www150.statcan.gc.ca)
• A legal and employment analysis summarizing provincial decisions notes that Alberta ended its proof‑of‑vaccination system on February 9, 2022; Saskatchewan ended its vaccine passport on February 14; Manitoba planned to end proof‑of‑vaccination on March 1 and indoor mask requirements on March 15; Quebec ended proof‑of‑vaccination by March 14; Newfoundland and Labrador planned to end its COVID restrictions, including mask and vaccination requirements, by March 14; New Brunswick targeted lifting all restrictions by March 14; PEI and Nova Scotia also set late‑February and March dates to drop vaccine passport rules. (mondaq.com)
• Nova Scotia explicitly announced on February 23, 2022 that all provincial COVID‑19 restrictions would end by March 21, 2022, removing gathering limits, distancing, and mask requirements in public spaces and businesses (with only health‑facility controls left to institutional discretion). (en.wikipedia.org)
• Quebec—one of the strictest provinces—reopened most sectors and dropped its vaccine passport in March 2022 and then lifted its general indoor mask mandate on May 14, 2022, making it the last province to end that broad requirement. (en.wikipedia.org)
• A national summary of the COVID‑19 response in Canada shows that all provinces and territories reached a “no restrictions” status (with mask mandates terminated or limited to narrow settings) between March and June 2022, confirming that provincial‑level COVID mandates in general public life were largely gone within a few months of February 2022. (en.wikipedia.org)

Regarding the second part of the prediction—whether this made the trucker protest’s original policy demands “largely moot”:

• The Freedom Convoy began over a federal vaccine mandate for cross‑border truckers but broadened into opposition to a wide range of pandemic restrictions, including provincial vaccine passports and other mandates. (apnews.com)
• As shown above, those provincial mandates were already in the process of being lifted and were mostly gone by late spring 2022, independent of the protesters’ continued presence. That meant a large share of the day‑to‑day restrictions the protesters objected to (e.g., proof‑of‑vaccination to enter businesses, capacity limits, general mask rules) disappeared on the timeline Sacks described.
• It is true that some federal requirements (notably border and travel vaccination rules) persisted longer, with domestic travel and federal‑employee vaccine mandates only suspended on June 20, 2022, and border vaccination/testing rules removed on October 1, 2022. (canada.ca) However, the specific claim being evaluated concerns provincial mandates and their impact on the protest’s broader policy goals.

Given that (1) Canadian provinces did, in fact, end most or all broad COVID‑19 mandates within a few months of February 2022, and (2) this substantially undercut the protest’s original demands around provincial restrictions, the prediction is best categorized as right, even though certain federal mandates remained in place somewhat longer.