Since the problem started immediately after updating to macOS Golden Gate 27.2 and has occurred for three consecutive days, it may be related to a software compatibility issue, graphics rendering, or excessive system resource consumption.
A black or frozen screen while switching between Chrome tabs could potentially be caused by hardware acceleration, runaway background processes, excessive CPU or memory usage, browser extensions, or macOS graphics-related issues.
I recommend first disabling Chrome's hardware acceleration. Open Chrome, navigate to Settings > System, turn off Use graphics acceleration when available, and click Relaunch. This will help determine whether the issue involves Chrome's interaction with the Mac's GPU.
Next, open Activity Monitor (Finder > Applications > Utilities) and check the CPU and Memory tabs. Look for processes consuming unusually high resources, particularly Chrome Helper processes and background applications. Also check the Memory Pressure graph for yellow or red indicators and monitor swap memory usage. Runaway processes or memory leaks can contribute to system instability and application freezes. Apple's documentation explains how to monitor CPU activity, view memory usage, and identify running processes.
Make sure Chrome is updated, and temporarily disable browser extensions by visiting chrome://extensions/ to determine whether any extension is contributing to the problem.
It would also be useful to test Safari with a similar number of tabs open. If Safari works normally, the issue may be specific to Chrome. If other applications experience similar freezes, the problem may involve macOS, graphics processing, or hardware.
If the issue persists, check the Console application (Finder > Applications > Utilities) for recurring errors involving WindowServer, GPU, Chrome Helper, or memory-related processes around the time the screen freezes. Apple's guide explains how to view and search log messages in Console.
You could also start your Mac in Safe Mode to determine whether third-party applications or background services are contributing to the problem. Apple provides instructions for starting a Mac in Safe Mode.
Finally, check System Settings > General > Software Update for any newer macOS updates or supplemental fixes. See Apple's instructions on updating macOS.
To help identify the underlying cause, could you clarify the following?
- What is your MacBook model and year, and is it an Intel or Apple silicon Mac?
- Does the entire system freeze, or does only the display turn black?
- Does closing and reopening the MacBook lid restore the display, or is a forced restart necessary?
- Does the problem occur exclusively in Chrome or in other applications as well?
- Have you noticed unusually high CPU or memory usage in Activity Monitor?
- Have you tried disabling Chrome's hardware acceleration?
Since the issue appeared after the macOS update, I would initially investigate Chrome's hardware acceleration, graphics rendering, and background resource consumption before considering more drastic measures such as reinstalling macOS.