Default browser does not show a page correctly from my website, fulguris does!

Using /e/OS Applications
1

Default Browser:

1000014466
10000144661116×2484 168 KB

1000014460
10000144601116×2484 132 KB

fulguris:

1000014467
10000144671116×2484 141 KB

1000014463
10000144631116×2484 373 KB

Fairphone 6 from murena running official /e/OS:

3.6-a15-20260312593772-official-FP6

(Same issue occurred in 3.5 version)

Regain your privacy! Adopt /e/OS the deGoogled mobile OS and online services

phone
phone427×374 173 KB

2

works for me in the default browser if I accept cookies, if I decline, no youtube embed (makes sense)