Is the wife sinful for joining her husband in France after suffering from lack of maintenance and him leaving her with her family for a long time?

If a Muslim woman is able to observe the rituals of her religion in a non-Muslim country, there is no harm for her in residing there, and emigration is not obligatory but rather recommended. However, residing in such countries may not be without risks for children, especially with the targeting of the hijab. Therefore, it is preferable to emigrate to a Muslim country whenever possible.