small pr feedback

Author: mydea

docs/platforms/javascript/common/options.mdx

@@ -14,17 +14,15 @@ sidebar_order: 2
 ## Core Options
 
 <SdkOption name='dsn' type='string' envVar='SENTRY_DSN'>
-The _DSN_ tells the SDK where to send the events. If this value is not provided, the SDK will try to read it from the `SENTRY_DSN` environment variable. If that variable also does not exist, the SDK will just not send any events.
-
-In runtimes without a process environment (such as the browser) that fallback does not apply.
+The _DSN_ tells the SDK where to send the events. If this is not set, the SDK will not send any events.
 
 Learn more about [DSN utilization](/product/sentry-basics/dsn-explainer/#dsn-utilization).
 
 </SdkOption>
 
 <SdkOption name="debug" type='boolean' defaultValue='false'>
 
-Turns debug mode on or off. If debug is enabled SDK will attempt to print out useful debugging information if something goes wrong with sending the event. The default is always `false`. It's generally not recommended to turn it on in production, though turning `debug` mode on will not cause any safety concerns.
+Turns debug mode on or off. If debug is enabled SDK will attempt to print out useful debugging information about what the SDK is going.
 
 </SdkOption>