I notice that the formulas typed in Fields are now highlghted in colours . I note that When you type anything that comes up Orange the cursor misbehaves so you really have to work hard to Type or Edit anthing more . I am working on Google Chrome . I will give brave a go . I notice also that Bots tend to compose Formulas with conditionals Identified with () I much prefer facer $$ but that is me . Well at least both work .
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Brave works fine . Using $$ or () . Does not show the Tags in Colour . YipYip.
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On MS Edge for me it is Broken also . 
Standard and BETA .