Warner Bros does not get all of the $363 million at the box office, the theatres takes their cut. For domestic gross it's said to be roughly 50/50 during a box office run, with the distributor (in this case WB) getting the most during the first week, and then the theatres get the most, for Foreign gross it's much less, with China only giving 20% of the box office to foreign distributors.
Also the $200 million production budget does not include promotion/advertising.
So it's very unlikely that Tenet made a profit at the box office, however there's streaming deals, physical media etc which can earn a pretty penny, particularly if something becomes a cult classic. Blade Runner and Starship Troopers were box office failures having has made lots of money afterwards.
Jpeg-XL makes use of Brotli, and once it hits 1.0 it will most likely be turned on by default in browsers and thus you will probably see a lot of jxl in the wild, particularly since it provides lossless recompression to existing jpeg files with ~20% smaller size as a result.
Another strong feature is the great upgrade path from existing jpeg files, which can be losslessly recompressed into jpeg xl with an additional ~20% compression.
At this point I don't really see a reason for AVIF, hardware accelerated decoding could be a benefit, but AFAIK there's no device supporting it.
A very obvious one is that by adding another language, you are adding more complexity.
It's not as if C is going to disappear from the kernel as it's something like 25 million lines of C code, and if Rust was to be supported, the current C experts who are maintaining various subsystems will now also have to become Rust experts, so that they can effectively accept or reject code contributions in that language.
Personally it just seems illogical, better to make a new kernel in Rust is you really want to use that language, than converting small parts of a HUGE C kernel. Google has been pushing for the inclusion of Rust into the kernel, it's weird that they are not writing their own shiny new Fuchsia OS kernel in Rust, instead of C++.
Also the $200 million production budget does not include promotion/advertising.
So it's very unlikely that Tenet made a profit at the box office, however there's streaming deals, physical media etc which can earn a pretty penny, particularly if something becomes a cult classic. Blade Runner and Starship Troopers were box office failures having has made lots of money afterwards.