If it inspires any confidence, drawing features are maintained by one of the top contributors to Joplin. There's a Freehand Drawing plugin for desktop, and a native Draw picture context menu item exists for when you're editing a note on mobile.
As far as tables go, the MultiMarkdown Table Tools plugin for desktop is also up-to-date. It has quality of life features like a Create table toolbar button, tab-through, auto-resizing, and more. If you are interested, I wrote about how to test the features I've named here: Making a Telephone Call Log - #6 by muzak
If you don't know how to use a plugin properly, you can always check its documentation on the Plugins website or search for its thread on this forum.