Other than YouTube, which purposefully slows Firefox down, I only ever encountered one webpage in years where the issue was 100% “caused” by my browser choice – the left pane (lesson list) in my school’s tutoring platform would not scroll due to what I assume was a trivial HTML oversight. After reporting the issue, they insisted that they would not support browsers other than ones based on Chromium and Safari and tried to convince me to switch. I don’t have access to the site anymore and I did not understand web development at all back then so I could not create a patch myself; I just worked around the issue using a very tall, zoomed-out “mobile view” to reach the off-screen buttons.

In practice, the sextant goes on top

Pretty lame compared to the sex tent

If you’re reading this and not using Firefox, do yourself a favor and don’t wait until 2024 to switch.

TL;DR: Pick L or M error correction depending on expected conditions. It is recommended to increase the error correction level unless it results in the QR code resolution (aka version) increasing. Many generators have this option. If you own the destination domain, use a short URL that is descriptive and contains/redirects to the page/resource in question, such as http://zooberlin.de/map?qr → https://www.zooberlin.de/wp-content/uploads/2020/06/karte_mobile.pdf?utm_campaign=poster (fictional example).