Hi Paul,
I haven't seen it but, like you say, the review is so off-putting that I don't feel like I want to. After reading this I went over to IMDB to see what others say but, as you might expect, the reviews are all over the place - some saying how great Toby is and how the realistic it all is and others with the exact opposite viewpoint.
If you haven't seen it already, The Queen's Gambit with Anya Taylor-Joy is very enjoyable - It's pure fiction but well acted and there is a scene where her opponent applauds her .... I wonder where they got that from 😀