In case you work with a lot of different Magento instances as a temporary project you might want to have a nice method to check debug backtrace of some function execution in Magento 2 quickly without installing or enabling additional software on the server, e.g. Xdebug.
In this case, you can use the native Magento backtrace function from \Magento\Framework\Debug class and call it whenever you need:
\Magento\Framework\Debug::backtrace(false, true, false);
As a result, you will get this nice HTML debug-backtrace: