Currently, the plugin says your system is ready as soon as the host has SQLite and SQLite3 class exists.

But MATH functions (like FLOOR) are not available before SQLite 3.35 [1]. While that version is more than 2 years old, Linux distros like Debian stable [2] (which is the one where the WordPress 7.x Docker images are based from [3]) still have 3.34.

IMHO, the plugin should make sure all the TOKENs it supports and creates SQLIte queries for (like FLOOR [4]) are supported in the server, so maybe a version check should be done against the SQLite3 version running on the server.

[1] https://www.sqlite.org/changes.html#version_3_35_0
[2] https://packages.debian.org/bullseye/libsqlite3-0
[3] https://hub.docker.com/layers/library/wordpress/php7.4-fpm/images/sha256-08a1cb1fbe022cd08d5d19e6f95ab549194927959a297da41590d4f2d884f7b4?context=explore
[4] https://github.com/WordPress/sqlite-database-integration/blob/main/wp-includes/sqlite/class-wp-sqlite-lexer.php#L919