I have two dyslexic children and they present slightly differently.
One reverses a lot. At 13, he still reverses letters in his name when he's not concentrating. He has no strong instinct for direction (also dyspraxic) so if you tell him 🖐 L for left, he gets confused because he can't visualise which way round the letter is to know which hand to use. He'd also flip words like was/ saw.
Very phonetic. Spiky writing. Inconsistent spacing.
Writing didn't match his verbal language skills.
DS2 took longer to identify and is slightly more subtle, which meant he's lost a couple of years of targeted support so has made less progress through KS2, plus he lost half of y2 and a chunk of y3 where the basics of building sentences were still being embedded. His sense of phonetics is more deeply affected. Similar issues with spikiness, and spacing. Tried really hard to copy the prescribed writing style which then compromises his ability to process his ideas and include prescribed content. Slow writing speed due to hyper mobility in his hand (applies to DS1 too)
My DCs' aquisition of skills has been inconsistent. Their vocabulary is diverse, but they stuggled building patterns and relationships with words. Grammar is hard to learn and retain. They can't apply multiple criteria together in a piece of writing. Both find that writing squirms around a page and the letters don't stay consistently placed and spaced on a page. (They have tints, one green the other blue and they help to some extent)
Typing is far easier, quicker, less draining, clearer to read and can be edited. They have far more productive outcomes when typing compared to writing by hand. That's another giveaway that it's a processing issue involved not ability.
My LA doesn't do dyslexia assessment. The SENCO shrugged me off when I asked if there was anyone she could recommend. It cost £500 for DS2 to be assessed 2 years ago. Fortunately we can pay it and the improvement in learing outcomes through targeted strategies and adaptions will repay itself many, many times over as he can now see and reach his potential instead of falling further behind each year like he was.
DS2 has a lot more executive function issues with things like time and organising than DS1. I'm still unsure whether that's solely his dyslexia or whether there's an additional factor like inattentive ADHD involved (he has plenty of "quirks" and DS1 is autistic too)