Google once again postpones removing third-party cookies from the Chrome browser: This is the cause.

Google has said that it will postpone until early 2025 its intention to phase out, or ban, third-party monitoring cookies in the Chrome browser. Third-party cookies are a kind of tracker that websites other than the one users are visiting employ to monitor users’ online activities for advertising reasons.
This is almost Google’s third postponement of its third-party cookie phase-out plan.

The business then rescheduled its intended 2022 deadline for eliminating third-party cookies from its browser to 2023. The plans were then postponed once again until the second half of 2024 by the firm.
The search engine behemoth revealed the revised intentions on its blog, noting that it has encountered difficulties receiving input from developers, regulators, and the industry.
Google’s statement on the phase-out of third-party cookies is as follows:.

We’re giving you an update on Chrome’s third-party cookie deprecation plan.
We acknowledge that harmonizing disparate comments from developers, regulators, and the industry presents continual problems, and we will keep up constant communication with the whole ecosystem. Additionally, it is imperative that the CMA has enough time to examine all available data, including industry test results, which it has requested by the end of June from market players. We will not finish third-party cookie deprecation in the second half of Q4 due to these two important factors.
We are still dedicated to maintaining constant communication with the CMA and ICO, and we want to wrap up that process this year. We plan to go forward with third-party cookie deprecation beginning early next year if we can come to an agreement.
Google hopes to offer people more control over their data and privacy via the Privacy Sandbox. It is comparable to what Apple accomplished in 2021, when it limited the availability of user data to advertising.
With Google’s Privacy Sandbox program, customers will have more control over their data and privacy online. When Apple limited advertising’ access to customer data on its iPhones in 2021, it used a similar tactic.