For a Facebook ad, set utm_source to facebook and utm_medium to paid_social, and Google Analytics 4 files the visit under Paid Social. In an unpaid post, keep facebook as the source and set the medium to social, and GA4 puts the visit in Organic Social. The builder above starts with the ad values filled in.
Naming the campaign
Use the same lowercase campaign name in every link for one campaign. GA4 treats Meta and meta as two different values, so one capital letter splits a campaign into two rows.
This UTM builder is free with no signup. SearchBlueprint, who make it, sell SEO planning for websites: which searches each page should answer.