Abnormal high memory usage

I use MacBook Pro 2022 13" M2, and my mac always uses 60-80% of memory.

What I'm usually opening is Wechat, KaKaoTalk, and Whale(Browser)

Here's link of diagnosis on activity monitor:

https://drive.google.com/drive/folders/1YGTVHY48BcUNgM-EmC-wTvR-0ruVTfcb?usp=sharing

Im not a tech guy so can someone find out the reason why?