I'm using LiteSpeed caching plugin

If you are using the LiteSpeed caching plugin, you should do the following settings in your WP to effectively capture UTMs.

Go to Settings

Copy the list below and add it in "Do not cache cookies" field

COOKIES

utm_campaign

utm_source

utm_term

utm_medium

utm_content

gclid

first_utm_campaign

first_utm_source

first_utm_term

first_utm_medium

first_utm_content

handl_original_ref

handl_landing_page

handl_ip

handl_ref

handl_url

organic_source

gaclientid

//and all the custom parameters created by you

Copy the list below and add it in "Do not cache query strings" field

QUERY ARGS

utm_campaign

utm_source

utm_term

utm_medium

utm_content

gclid

//and all the custom queries you are capturing

That's it. You are ready to go collecting UTMs :)