"emmet.excludeLanguages": ["typescriptreact"] // or whatever languages you want to exclude
like "emmet.excludeLanguages": ["javascript"]
Which will stop emmet from working at all in those languages you specify.
Or you can also try:
"[typescriptreact]": {
"editor.acceptSuggestionOnEnter": "off"
},
or
"[javascript]": {
"editor.acceptSuggestionOnEnter": "off"
},
together with
"emmet.showExpandedAbbreviation": "never",
to keep emmet features in your language but disable seeing the abbreviation and accepting it on enter.