To get this hidden discount, start the uninstall process during the 7 day trial period of the downloadable demo. You will be offered 40% off the lifetime license through a popup message. It's basically a 'please don't go' discount.
I have been using the 2021 Steam version, but it lacks video acceleration. It was fine until I switched to editing 4k content. The version you get directly from them has hardware acceleration and is a generally improved.
I am aware of other free video editing programs. Movavi has the advantage of being more streamlined if you can live with it's limitations, and actually accepts way more video file formats that some high profile video editors. It was the only one I tried that could work with .mkv files directly from OBS without needing to be converted first.
Uninstalling other trial versions of their software will likely garner similar discounts.
I bought the 2021 edition as part of a Humble Bundle in October 2021. Total cost was AUD $35 for a bunch of their products, but I don't know how regularly they do sales like that. From a quick google search and looking at Steam's price history this looks like a regularly offered price for the video editor.
I mainly wanted a no frills video editor that was quick to learn / easy to use and I'm pretty happy with it. Does exactly what I need it for and took 10 minutes to learn how to use.