Those complexities should surprise anyone. The fact is, Adobe can't parse anything from Affinity, but the leaps of improvements Affinity's Suite is showing will soon have it surpassing Adobe's equivalent offerings, and that's actually sad seeing as they were the pioneers in each of these categories.
It’s Affinity that can’t read complex TIFFs and PSDs or export them properly to be read in Photoshop. I shouldn’t say complex really. Even some simple clipped layers can’t be read properly by Affinity.
Feature wise though Affinity have tried to copy Photoshop’s features but they are around 5-10 years behind Photoshop. No object select, no subject select, no puppet warp, no facial recognition, no neural filters, weaker proofing tools, nothing close to Actions, no scripting support, no integration with NLEs and compositors. Doesn’t even add the link to the foreground/background color picker in the tool bar which is such an oversight.
We been though this type of online debates for 25 years. In the 90s some said ‘Use Paint Shop Pro. It’s $50 why pay $1500 to Adobe. OR Use GIMP iTs FrEe.’
It makes people sound really unprofessional and inexperienced to push an attractive budget app instead of an industry leading tool that all the budget apps try to copy and never catch up.