So like burp suite...?
It's also not uncommon to have sites behave a bit differently when running via Burp, so given it's not open source, it can be hard to diagnose/debug what's going on.
I've never liked Burp. Java, requires GUI, and subscription costing 365 USD/year. Where without a license you cannot even do trivial automated stuff (forcing you to click 'OK' all the time; easily circumvented with e.g. AHK).
At the very least a personal license for Pākiki is only 100 USD/year. Which is a lot less barrier of entry for amateurs (if you're a for-profit web pentester /care). How does Caido and Pākiki compare to mitmproxy?