I echo the points above - phonics doesn’t work for all children. It works for most children, so it has become the dominant approach.
What are you doing at home to support the phonics? Are you following the same “scheme” as school?
Our school did Read Write Inc (RWI) and I bought some flash cards from Vinted so we could practice the phonic sounds just like they did at school.
I also made up my own games with ds.
Bought Junior Scrabble on Vinted. He hated that!
But one that worked very well for my ds’s confidence was to chop up a cereal box into small rectangles and write letters and later words on them. I would use red pen for the common exceptions (like “said”) just like RWI does.
We would play a game like how many could he read in two minutes. He was allowed to sound out loud to help him, or “sound in his head” or do word recognition.
As he got better and better, I would drop some of the easier duplicates (so we didn’t have cat, bat, fat, sat, mat, hat, and pat - we might just keep “fat” in his word box).
I also played a game where I gave a bag of things and he would pull out ten things and he had to find the wordcard on the table. Sticking closely to phonic sounds he knows! So the bag might contain a spoon, a (fidget) toy, a coin, some plastic food from his toy kitchen like an egg, burger, apple, and things from his toy farm like a cow, man, pig.
You can make it harder and harder.
Once he got the hang of that, I started to introduce a “which one is spelled right?” game, so this time, the word cards showed the wrong spelling half the time. He had to pick the ones spelled correctly. So he might have to choose between “table” and “tabel”
Interestingly by this stage, this last game he found extremely easy - it was almost impossible to catch him out. I pointed out to him that this meant all his reading had made his brain absorb the way a word should look when it’s written down correctly. He knew an awful lot more than he thought he did (and more than I thought he did!).
if your ds passed the Phonic Test this year, he’s probably doing fine and with some gamified top-ups where he generally wins (don’t make it so hard he loses heart and cries!) you’ll find he does ok.
Oh I also did use a home made sticker chart - so when he got to 10 stickers (5 days of practice a week) he got a tube of fruit pastilles (his favourite). I’m not beyond a bit of cheap incentivisation!