Tesseract out of the box is terrible for anything non standard. I tried using it for the comic books. Unusable. The training for your font is doable, but it's very time intensive (while the tools are pretty good!).
I'd say any of the language models are far better than Tesseract. I did some work in this space and it was an absolute nightmare, event working with pdfs.
For OCR of handwriting, I did some comparative analysis a year back, and I found that Tesseract was... not good. However TrOCR was okay, certainly the best of the FOSS solutions. But Textract from Amazon was the best one by far far for handwriting, though your mileage will vary
Adobe also has the whole scan thing, and apple can — in some cases — correctly transcribe characters from images.
https://github.com/tesseract-ocr/tesseract