That being said, here are a few general points to consider:
While version 2.23.6 might "work," keep these risks in mind:
For those set on using an older version, exercising caution and taking necessary precautions can mitigate some risks. Nonetheless, keeping your WhatsApp updated ensures you have the latest features, bug fixes, and, most importantly, security patches. If you do choose to download an older version, make sure you're aware of the potential risks and take steps to protect your device and data.
WhatsApp beta for Android 2.23.6.20: what's new? - WABetaInfo