Welcome to our community, Andres! You actually joined us for the same reason that I did!
Others like us have also been wanting AVIF support from DxO PhotoLab for over 3 years, both for incredible HDR support as well as vastly higher quality overall, as I found out from looking at other forum posts.
At the time, people replied and said AVIF was too high quality and it would take a $20,000 reference monitor or more to be able to see the difference. ( Support for HDR .AVIF Files - #2 by Wolfgang )
But I already owned a 10-bit monitor for my computer three years ago that cost far less than $20,000, so that objection made no sense to me.
At this day and age in 2025, nothing should ever be exported for enduring and lasting quality (in my opinion), at 8-bit color depth.
All of my photos taken since last year are all in 10-bit, 12-bit, or 14-bit color (.HIF files from my Sony cameras or .ARW raw files).
And as of a couple weeks ago I switched all my online galleries for clients to AVIF format photos, which are all 10-bit color depth except for the ones I work on extra hard in PhotoLab and can only convert to 8-bit AVIF after exporting first to 8-bit JPEG from PhotoLab–since TIFF and DNG are the only other export options PhotoLab offers and neither TIFF nor DNG is compatible with the web gallery workflow.
It’s tragic that my most important photos, edited carefully with advanced DeepPrime technology, etc., are now the lowest quality bit depth out of all my photos in clients’ galleries, merely because PhotoLab is so good in every way except for its lack of ability to export its own good quality editing work with an incredible quality format like AVIF.