Welcome to the forum!
All of this is not ideal, but you can find some workarounds in this thread:
https://discourse.joplinapp.org/t/mobile-webclipper-companions/25860
Copy/pasting into Joplin after having rendered a website with the ToMarkdown addon for Safari on iOS works quite well. You'll have to take an extra step, however, by copying over the URL as well.
I'll never ever go back, but in this respect (clipping on mobile platforms) Evernote is far superior to Joplin - and to OneNote as well.