Note: I have opted into the Steam beta client and I'm running on the unstable repository up to date as of Thu May 16 13:18:22 AEST 2019
Not sure if this is a issue with Steam itself or just something needing a rebuild so figured I would report it.
When you launch steam the friends list and store sections will not load.
./steamwebhelper: symbol lookup error: /usr/lib/libpangocairo-1.0.so.0: undefined symbol: pango_renderer_get_alpha
Full log here: https://hastebin.com/otabaqofis.sql
If I turn off "Use native runtime" in LSI the problem is resolved.