Just some observations on the versions.
Mint 19 default Gimp, same as 'buntu bionic is Gimp 2.8.22 but OP is using 2.10.?? Best guess OP is using a flatpak or snap. Has the issue as you indicated.
Mint 19 / bionic use librsvg 2.40.20 and that is the only version available. Installation from the PPA uses that. No bug
Debian 10 (also 'buntu 19 disco) uses librsvg 2.44.10 and Gimp 2.10.8 as default and have the bug.
Just looking at the 2.10.13 appimage and that has librsvg 2.42 and no bug.
Why do you say the logo does not render correctly? The graphic is ok. All of them show the deformed circular path - Was that not a bug report? Seem to recall one but not able to find it.
Mint 19 default Gimp, same as 'buntu bionic is Gimp 2.8.22 but OP is using 2.10.?? Best guess OP is using a flatpak or snap. Has the issue as you indicated.
Mint 19 / bionic use librsvg 2.40.20 and that is the only version available. Installation from the PPA uses that. No bug
Debian 10 (also 'buntu 19 disco) uses librsvg 2.44.10 and Gimp 2.10.8 as default and have the bug.
Just looking at the 2.10.13 appimage and that has librsvg 2.42 and no bug.
Why do you say the logo does not render correctly? The graphic is ok. All of them show the deformed circular path - Was that not a bug report? Seem to recall one but not able to find it.