It appears that for some users the quicksuggest-amp.sql file in Remote Settings directory is using up very large amounts of data.
Size: 1117424 kb File: /private/var/mobile/Containers/Shared/AppGroup/4C76D50E-F150-4A3A-8819-5C353404F75A/profile.profile/remote-settings/quicksuggest-amp.sql
Additional info: https://mozilla.slack.com/archives/C05C9RET70F/p1774471301644929
┆Issue is synchronized with this Jira Bug