Software updates are usually viewed as a good thing. They introduce improvements to the current software, things like optimization and so on. Sometimes they also come with new features, and more importantly, they also come with fixes for bugs and close off security vulnerabilities.
Unfortunately for some Mac owners, it seems that Apple’s latest macOS 12.3 update is causing more issues than it fixes. Posts on Apple’s forums and Reddit have revealed a number of user reports in which users are claiming that the update has actually ended up bricking their computers, leading in some cases to logic board replacements.
According to the reports, this seems to be affecting the new M1 14-inch and 16-inch MacBook Pros than other Mac computers. Apple has yet to officially comment on the issue, but seeing as they are replacing the logic boards for users affected by it, they are probably aware of it and hopefully a fix is in the works.
In the meantime, while it might be tempting to install macOS 12.3 seeing as it finally brought Universal Control to users, maybe hold off on doing so until a fix has been released in case you run into similar issues that other users are reporting.