Isn’t she able to bow out of fasting for Ramadan since she takes medication?
Chantal is not Muslim, so she's not required to fast. However, if she converts, she can probably still find a way to get out of doing so.
I found this from googling around:
As one of the five pillars, or duties, of Islam, fasting during the month of Ramadan
is mandatory for all healthy adult Muslims. Children who have not reached puberty, the elderly,
those who are physically or mentally incapable of fasting, pregnant women, breastfeeding mothers and travelers are exempt.
From another website:
Fasting in the month of Ramadan is obligatory upon every adult Muslim, male or female, who has reached puberty,
is sane and who is not sick or traveling..... The traveler who misses the fasts of Ramadan must make up those missed days later as soon as possible after Ramadan.....
During fast, the following things are permissible....Eating, drinking or smoking unintentionally, i.e., forgetting that one was fasting. But one must stop as soon as one remembers and should continue one's fast.
IOW, she could use any of the highlighted text as an excuse not to fast, i.e, she's not healthy, she's not physically or mentally able to do so, she forgot it was Ramadan, whatever.
In 2023 Ramadan is March 22 to April 21. Chantal will be long gone from Kuwait by then. No way is she going to fast if Salah isn't around, even if she claims to have converted to Islam by then.
TL;DR: Chantal is not Muslim and therefore is not required to fast. Even if she converts, she will find a way to weasel out of it.