how to connect my iphone 14Pro Plus to my new Macbook sir

Depending on what you're trying to do, there are different ways of connecting iPhones to Macs. Three of the main ones are

• iCloud synchronization
• Manual synchronization using a cable and the Mac Finder
• e-mail and calendar synchronization by using IMAP connections to an e-mail account

Introduction to iCloud - Apple Support

Intro to syncing your Mac and your devices - Apple Support

There are also some other things you can set up. For instance, although your Mac cannot directly place or receive cellular phone calls, or send or receive SMS/MMS text messages, it can do this with the help of your iPhone. I have taken phone calls on my Mac on several occasions while my iPhone was charging in another room.

Use Continuity to connect your Mac, iPhone, iPad, and Apple Watch - Apple Support

System requirements for Continuity features on Apple devices - Apple Support

RusticBear wrote:

I'm trying to connect my iPhone ProPlus to my new Macbook air however nothing I've done and/or tried has worked

Can't be connected via bluetooth not supported. Use the cable that came with the phone if you want to sync with finder.