Hi @Cafebabe!
This is a nice classical sonata! The thing that bothers me when listening to this at first is the really bad balance between the melodic right hand and the accompanying left hand. The left hand should be softer and the melody in the right brought out more to be in high relief. Before, the only way to make this happen is to use MS Basic Soundfonts and use velocity values for the right hand. But I don't know if you know about a recent trick I learned in writing piano music in Musescore Studio 4 using the Musesounds Piano. What I do now is I write the piece for two tracks of basically two separate pianos - one for each hand. I go to the layout options and have each piano displayed with only one clef in one staff rather than in a grand staff for both. Then I bracket them as if they're one grand staff but each retains its own individual identity. This way I can give each hand its own dedicated dynamics and volume, reverb and other settings giving me more control over what is the most prominent part of the composition at any given point. I also noticed that you don't have any dynamics in your piece at all. Maybe you didn't find it necessary, and it could be argued, it is more historically accurate if its meant to be played on a period instrument.
Musically, I find the retransition back to F major at the end of the exposition a little abrupt and forced. Another thing is that I'd expect each theme in a sonata to have ample time to speak before going into transitional figures. This would usually be done by giving the themes a full period, double period or sentence form which you don't do and it makes the themes seem like they can't stand still and start to flit about try to run away from themselves before the listener has even had a chance to absorb them. Also, when the development section starts, it seems like it's just a chord progression without really any relation to the themes. It makes me question what, if anything, is being developed. Although I had a lot of critiques of this piece, I did find it an overall enjoyable easy listening experience. Thanks for sharing!