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Looks like it happens on that Instagram browser but not on Chrome, I clicked the 3 dots and used "open on chrome" and it worked well.

Still a problem because it should open there tho.

I'm going to test the 3 points here, in my rush I didn't even see that there was this option haha, I'm going to test them here and get back to you!

Actually, there is the option to open it in the browser, here for me Brave appeared, I believe it is my default browser, so the page on inleo opened correctly. Now we would have to try to understand, but I think Instagram could actually be modifying something in the link or something like that.

It is being modified. A bunch of characters appear in front of the normal URL...

It also happens to other links but doesn't cause them to bug like that

It's something very specific, but it's good, we've already found the scenario, now it's time to try to help DEVs to see if a solution is possible for this, maybe a way to shorten the link or something like that, it could be something about web protocols also. I'm kicking around ideas 😅