4 Reasons Not to Install macOS Ventura 13.3 & 11 Reasons You Should
Be Careful If You Own an Old Mac
macOS Ventura is available for Macs dating back to 2017 which is great for long term support, but if you're at the edge of this compatibility, you may want to hold off on installing the update. Let other users try out the latest software on an old Mac to see how it performs.
This will let you decide if the software's performance is fine or if there are issues that will prevent you from reliably using your computer.
Check sites like the MacRumors forums and Apple Discussion forums to find feedback from users with similar Mac models.
You're able to downgrade your Mac's software to macOS Monterey so you can test macOS Ventura out, but you'll want to make sure you have a good backup and that you have time to downgrade if macOS Ventura isn't what you expected.