I hope that someone will take on the effort to implement the code in a standard browser for IPhone, without the hassle and associated risks of using an obscure browser.
In case, I will use that extension from desktop only.
I tried to search a bit, looking for alternative for Safari userscript I don't know if this would work to you I only have old iPhone 6 and I stopped using this due to most of the apps do not work.
Can you try to install something called "Stay" it's a script manager, and found it on Youtube
here I hope the enhanced mobile mode v1.3 will work on this script manager.