I teach Year 1 and have also taught Foundation. As others said, there will be a huge range in Foundation. Some children are still mark making, while others are producing readable sentences.
However, judging from your OP, your daughter doesn't seem to have made the progress that I would have expected for her potential ability. The children who are still mark making this late in the year tend to be those who weren't really interested before they came to school eg active little boys who spent their nursery years running around outside being a superhero.
Those children, especially girls, who have engaged in mark making before school, enjoy drawing and come to school being able to write their name are usually (but not always) able to write a couple of sentences independently at this point of the year.
It's hard to know exactly what's going on without knowing your daughter and without seeing what is happening in the classroom. I can think of 2 possibilities. (but it could be something else).
One is that she needs to develop her working memory. Before she even picks up a pencil, it would help her to think of her sentence. Then say that sentence aloud. Then repeat it slowly a few times, "saying it with her fingers" ie put up 1 finger each time she says a word. Once she is sure of her sentence then she could try writing it - saying it over and over as she writes. Finally, once she has finished her sentence then she needs to read it aloud - pointing at each word otherwise she will say the whole sentence again including any missing words that she forgot to write.
I'm also wondering if something has happened to knock her confidence - especially as she doesn't want to write at home, even in a fun way. If she is a bright little girl who usually picks things up easily, it could have been a shock to her to find that learning to write is tricky and something to work at. This might have made her reluctant to choose to write so that she has been writing with an adult in class when asked, but doesn't choose to go to the writing table or to write in the role play area. If she isn't choosing to write and isn't practising as often as the confident writers, that could slow her progress down a little.
I wouldn't push her to do much at home at the moment as she is reluctant - keep going with the reading instead.
But what I would do is make sure there are always writing resources available. Things like sparkly pens, gel pens, post it notes and little notebooks sometimes encourage reluctant writers.
I'd also let her see you writing - make it look enjoyable and model how you are writing a sentence eg by saying your sentence aloud over and over, and counting the words on your fingers.
For example if you go out for the day, buy a postcard to send to Granny. Ideally find somewhere to sit quietly while you are still there, ask dd what you could tell Granny and then you write the sentence and she just writes her name.
Pretend to be a bit forgetful so that you have to write messages to yourself on post-it notes and stick them around the house eg "We need more milk" on the fridge or "Numberjacks is on Mondays" on the tv.
If she does a lovely picture that you stick up on the kitchen wall, then write a label for her eg "This is dd's amazing garden."
With a bit of luck, and in a no-pressure, no-criticism environment, she might want to start copying you and writing her own little notes and labels.
sorry this turned into such a long post. Hope something in here is helpful!