How do I resolve exchange email issues after updating to macOS 15.4?

After updating to macOS 15.4, email loads very slowly and will not search the Inbox or other folders that reside on the Exchange server. Updating to macOS 15.4.1 did not fix the issues.

Apple Help Desk techs checked to see if there had been any other reports of this problem after the update and they are getting many complaints that are exactly like this. So, the tech I last spoke with says to install the next update whenever I get the notice and to use my web mail until then.

IS THERE A FIX FOR THIS?

[Re-Titled by Moderator]