scraping the values after selection in a website - python beautifulsoup

I am trying to get the number of products after choosing the size variable of it. I tried to select the size with playwright and get the value with beautifulsoup but when I get the output of the highlighted fields (on the attached img), I cannot change the input value (size of the product) and then cannot get the amount

html code of the page

page.goto("https://www.shopier.com/ShowProductNew/products.php?id=12617395")
r = requests.get(page.url)

page.locator('select[name="selectFirstVariationGroup\[\]"]').select_option(value='182695')

page.wait_for_load_state('networkidle')
soup = BeautifulSoup(r.content, 'html.parser')

size = soup.find_all('div', class_='form-group mb-4')
print(size)

options = soup .find_all("select",{"id":'select-quantity'})
print(options)
🔴 No definitive solution yet