My only concern with jpeg xl is… how do you know if the encoded file is losslessly compressed or not?
with jpg and png, one is lossless, one is not. But if all the files have a jxl extension, you can’t know unless the encoder adds metadata for it, right?
If you ever must, buy a new laptop. And use it on a guest wifi network. Use it as you would a work laptop, nothing personal on it