In this pdf, which I converted to an .svg with
$ dvisvgm -s -P -f woff2 1.pdf > 1.svg
some chars (> and ') got replaced with ". This doesn't happen with --no-fonts option.

$ dvisvgm -V1
dvisvgm 3.4.1 (x86_64-pc-linux-gnu)
-----------------------------------
brotli: 1.1.0
clipper: 6.2.1
freetype: 2.13.2
Ghostscript: 10.02.1
kpathsea: 6.3.5
mutool: 1.24.6
potrace: 1.16
ttfautohint: 1.8.4
xxhash: 0.8.2
zlib: 1.3.1.zlib-ng
In this pdf, which I converted to an .svg with
some chars (
>and') got replaced with". This doesn't happen with --no-fonts option.