Create an override function, as to bypass Freemius in some less than smart plugins.

freemius.php

<?php
// REQUIRED: Make sure to edit the last few lines to assign the global variable that any particular Freemius/FS-enabled plugin wants to use to have this intercept it (if not already included below.)
// Please, any revisions for **adding more plugin to be supported by default** and/or better accommodating things are welcome at: https://gist.github.com/KZeni/7afbd8b9a94c23aa0a9133d4ce767d0b
// One would like to think this could grow to automatically intercept all plugins trying to use Freemius, but manual editing & updating a gist (maybe eventually getting to the point of being a plugin with automatic updates [be it via a WP.org plugin listing, its own built-in updater like PUM, GitHub repo where sites have plugins check a repo for new releases, etc.])

// Based on: https://gist.github.com/thefrosty/d9bb001c05a407ba1aaa60c8b75aeb43 (via https://austin.passy.co/2024/disable-freemius-in-wordpress-plugins/)

declare(strict_types=1);

/**
 * Create an override function, as to bypass Freemius in stupid plugins.
 * @wordpress-muplugin
 * Plugin Name: Freemius Killer
 * Description: Global override for Freemius' "loader".
 * Version: 1.1.0
 * Author: Liton Arefin
 * Author URI: https://github.com/thefrosty
 * phpcs:disable
 */

if (!\is_blog_installed()) {
    return;
}

// Create the Freemius Stub in case other plugins use their own global we need to override.
global $freemius_stub;
$freemius_stub = new class {

    // Used to generate methods missing in this Stub dynamically. 
    public function __call($name, $arguments)
    {
        return;
    }

    public function add_action(
        $tag,
        $function_to_add,
        $priority = 10,
        $accepted_args = 1
    ) {
        return; // Skip
    }

    public function add_filter(
        $hook_name,
        $callback,
        $priority = 10,
        $accepted_args = 1
    ) {
        return; // Skip
    }

    public function can_use_premium_code()
    {
        return false; // Don't try to use Premium code that's gated by Freemius when we're trying to not use Freemius to any capacity
    }

    public function can_use_premium_code__premium_only()
    {
        return false; // Don't try to use Premium code (especially when it's double-checking only for those that are premium, it seems?) that's gated by Freemius when we're trying to not use Freemius to any capacity
    }
    
    public function has_active_valid_license( $check_expiration = true ) {
        return true;
    }

    public function is_activation_mode()
    {
        return false; // It shouldn't ever think it's doing the Freemius activation
    }

    public function is_activation_page()
    {
        return false; // It shouldn't ever think it's on the Freemius activation page
    }

    public function is_free_plan()
    {
        return true; // As an inverse of the premium code checks, let it assume it's on the free plan via Freemius
    }

    public function override_i18n()
    {
        return; // Skip
    }
};

/**
 * Find your plugins' Freemius global variable and assign it below.
 * This example is using Menu Image; $mi_fs found in `wp-content/plugins/menu-image/menu-image.php:147`
 */
global $mi_fs;
$mi_fs = $freemius_stub;

// Post Snippets
global $postsnippets_fs;
$postsnippets_fs = $freemius_stub;

// TablePress
global $tb_tp_fs;
$tb_tp_fs = $freemius_stub;