How do i connect two monitors with the thunderbolt connection on my MacBook Air M1 to my Dual LG monitors

Unfortunately, your M1 laptop only natively supports a single external display.

A quick search found numerous claimed technical solutions (workarounds) but I can’t vouch for their functionality.

Much more is posted here:

https://discussions.apple.com/thread/252066923?page=2

As a fellow owner of dual, thunderbolt LG monitors; this lack of capability would have been grounds for me to exercise Apple’s 14-day return policy.