Question 1: Does MaTeX recognise all symbols
MaTeX["\otimes"] works but MaTeX["\bot"] where \bot is a the perpendicular sign in lateX doesn't work
Question 2: How to write just text in MaTeX?
MaTeX["Theory of everything"] yields Theoryofeverything in mathmode without spacing and MaTeX[Theory of everything] yields everythingofTheory without spacing and the words reversed.
Use the follwing code to install Matex:
Welcome to Wolfram Community!Please make sure you know the rules: https://wolfr.am/READ-1STPlease next time link your post to the duplicated one from MSE site.
This was posted here on community as well as stack exchange, but I think the proper place for it would actually be on the MaTeX github "Issues" page. The package author responds to issues there,
I would agree if an issue had actually been identified. That is not the case here. IMO it is good to get confirmation from the community before creating an issue on GitHub (or contacting Wolfram Support).