I guess you could rebuild LL's
3p-freetype on OpenSuse like you did with v2 viewers (the Cool VL Viewer v1.26.5 now uses the same packages as v3), but be sure to pick up the
last good v2.4.4 version of freetype in the repository, because LL apparently f*cked up the revert to v2.3.9, and the resulting library would fail to use the viewer bundled fonts (v2.3.9 is used in Windows v3 builds and I had to revert to Snowglobe's v1.5 package for the Cool VL Viewer so that the bundled fonts are found: Linux and Darwin builds of v3 viewers still use an old build of freetype v2.4.4 that works just fine, so I'm just using LL's provided pre-built freetype for them).