I wish I could easily export my iPhone’s Safari “Reading List” even to something like this. I found a Shortcuts script that would do it but there are so many links I have saved that it freezes.

> there are so many links I have saved that it freezes

If you are motivated enough to write Apple Shortcuts a useful trick for ~Find type actions that overload is to Filter them into reassemblable pieces eg

action find items from reading list filter Title begins with A (then do B etc)

that this trick often works would be due to the internal nature of the Shortcuts implementation problems, so YMMV