The half-decade push to bring employees back to the office after the onset of the pandemic has crossed a significant threshold, according to JLL: More than half of employees at Fortune 100 companies are now required to come in five days a week.

The firm found that 54% of employees at Fortune 100 companies are under five-day office requirements as of this month, compared to 41% for hybrid work policies.

That represents a sizable shift from the same month last year, when JLL found that 11% of employees at those companies were under full time in-person requirements and 83% were under hybrid work.

The shift indicates that hybrid work hasn't become the "new normal," and five years after the pandemic turned office culture on its head, the new rules are still being written.

JLL Senior Manager Jacob Rowden announced the findings in a LinkedIn post, calling the moment a “major tipping point.”

“There have been enough major shifts over the past 12 months that momentum clearly points towards continued incremental increases in attendance requirements, and catalysts that would shift momentum towards more flexibility seem rare or completely absent in the current environment,” he wrote.

Rowden highlighted JPMorgan Chase and Amazon as examples, both of which implemented full-time in-office policies in the first quarter of this year.

Other Fortune 100 companies with new in-office requirements over the past year include AT&T, Salesforce and Google.

Beginning in October, the majority of Salesforce employees were required to come into the office four to five days a week, the San Francisco Standard reported.

In January, AT&T began requiring all office employees to be in person five days a week, Business Insider reported.

And though Google hasn’t called employees back full time, this spring it sent memos to several teams saying they would need to start showing up to the office three days a week or risk losing their jobs.

On the government side, President Donald Trump signed an executive order on the first day of his second term telling agencies to start implementing programs to bring employees back full-time. Agencies were told to get their plans in place roughly 30 days after the order.

“In reality, every time a company increases office requirements, every other company becomes more likely to increase theirs as well, especially if they are peers in the same industry,” Rowden wrote.