Being new to Joplin, I was going through the list of features to see if they meet my requirements and noticed that, although the demand was high for a WYSIWYG editor on mobile, none had been integrated yet.
After reviewing several discussions and feature requests on the subject, I realized that it was due to the fact that there was no reliable open-source WYSIWYG editor available for mobile at the time.
Therefore, I searched the web to see if anything new would have been released in the last few years and discovered TinyMCE Mobile.
Based on the information that I could find, it seems that TinyMCE Mobile could be a reliable WYSIWYG editor for the mobile version and may even allow creating tables via the "Table plugin".
However, I can see that TinyMCE Mobile was deprecated with the release of TinyMCE 5.1 and has been removed in TinyMCE 6.0. Based on the documentation, the latest TinyMCE versions would provide an improved mobile experience, which is enabled by default.
TinyMCE for touch-enabled and mobile devices:
Since the desktop version already uses TinyMCE, integrating it on the mobile version should be achievable.
I truly believe that having a WYSIWYG editor on the mobile version would attract a much larger user base to Joplin. It is also worth considering that less tech savvy users may be more inclined to opt for a turnkey solution, which is likely to include subscribing to a Joplin Cloud plan.