2.10.20 is extremely slow with operations in 16 or 32 bit
whether the repo version or flatpak certain operations are extremely slow and over time, second file, third file and so on other operations become slow also to make it simple, the crop tool becomes already have a coffee and lean back operation on 6kx4k pixels files, then the unsharp mask needs endless to open the settings box but then when set it runs and finishes fast always, this is general until then the export file option, the folder/file selection box comes up fast but then the final export box needs an hour to appear ... this is all better with 8bit files but still noticeable in comparison to 2.18