Parts of Configurable Reports are compatible with Moodle 3.2, 3.3, 3,4 and 3.5 however there are definitely issues. For example, you can create custom SQL reports but can't import existing reports. Creating graphs doesn't work. Icons are broken and links to stylesheets are broken.
I fixed some of these issues in my fork at https://github.com/michael-milette/moodle-block_configurablereports/tree/MOODLE_33_STABLE which at least makes it usable in Moodle 3.2, 3.3, 3.4 and 3.5.
If anyone has fixes for remaining issues listed above in bold, please share them on the GitHub fork so that we can all get this very useful plugin back into a working state. Keep in mind that I am just looking to fix existing bugs/issues, not make enhancements the plugin.
Hopefully, one of these days, the fixes will be pulled into the official configurable Reports.
Hope you find this useful.