There are strange prints in the output console for the client which is exposed to both Studio and the Roblox application.
11:23:48.652 [ExpChat/mountServerApp (Trace)] - mountServerApp started - Server - Logger:48
11:23:48.652 [ExpChat/mountServerApp (Trace)] - Creating default TextChannels - Server - Logger:48
11:23:48.653 [ExpChat/mountServerApp (Trace)] - Creating default channel: RBXSystem - Server - Logger:48
11:23:48.653 [ExpChat/mountServerApp (Trace)] - Creating default channel: RBXGeneral - Server - Logger:48
11:23:48.653 [ExpChat/Analytics (Debug)] - Event: DefaultChannelsCreated - Server - Logger:48
11:23:48.653 [ExpChat/mountServerApp (Trace)] - Creating default TextChatCommands - Server - Logger:48
11:23:48.653 [ExpChat/Analytics (Debug)] - Event: DefaultCommandsCreated - Server - Logger:48
11:23:48.653 [ExpChat/Analytics (Debug)] - Event: ExperienceChatLoaded - Server - Logger:48
11:23:48.653 [ExpChat/mountServerApp (Debug)] - Start watching for new channels and commands - Server - Logger:48
11:23:49.175 [ExpChat/mountServerApp (Trace)] - Adding user 2258246 to TextChannel: RBXSystem - Server - Logger:48
11:23:49.175 [ExpChat/Analytics (Debug)] - Event: ChannelJoined - Server - Logger:48
11:23:49.175 [ExpChat/mountServerApp (Trace)] - Adding user 2258246 to TextChannel: RBXGeneral - Server - Logger:48
11:23:49.175 [ExpChat/Analytics (Debug)] - Event: ChannelJoined - Server - Logger:48
11:23:49.409 [VoiceChatServiceManager] - Checking user call state - Client - Logger:15
11:23:49.616 [VoiceChatServiceManager] - Voice settings endpoint returned table: 0x2619b346d1f54537 - Client - Logger:15
11:23:49.617 [VoiceChatServiceManager] - Voice access denied - Client - Logger:15
11:23:49.617 [CoreScripts/PlayerBillboards] - VoiceChatServiceManager failed to initialize - Client - Logger:15
11:23:49.618 [VoiceChatServiceManager] - Got user call state - Client - Logger:15
11:23:50.204 [ExpChat/mountClientApp (Trace)] - mountClientApp started - Client - Logger:48
11:23:50.204 ▶ [ExpChat/Analytics (Debug)] - Event: ChatWindowConfigurationLoaded (x11) - Client - Logger:48
11:23:50.206 ▶ [ExpChat/Analytics (Debug)] - Event: BubbleChatConfigurationLoaded (x13) - Client - Logger:48
11:23:50.208 [ExpChat/Reducers/TextChannels (Trace)] - TargetTextChannelPropertyChanged dispatched - Client - Logger:48
11:23:50.208 ▶ [ExpChat/Analytics (Debug)] - Event: ChatInputBarConfigurationLoaded (x10) - Client - Logger:48
11:23:50.210 [ExpChat/Reducers/TextChannels (Trace)] - TextChannelCreated: RBXSystem - Client - Logger:48
11:23:50.210 [ExpChat/Reducers/TextChannels (Trace)] - TextChannelCreated: RBXGeneral - Client - Logger:48
11:23:50.211 [ExpChat/mountClientApp (Trace)] - Watching Players service - Client - Logger:48
11:23:50.211 [ExpChat/mountClientApp (Debug)] - Player added: SharpSerious 2258246 - Client - Logger:48
11:23:50.211 [ExpChat/mountClientApp (Trace)] - Found local player - Client - Logger:48
11:23:50.211 [ExpChat/Analytics (Debug)] - Counter: ExpChatV4_2_5Count - Client - Logger:48
11:23:50.211 [ExpChat/mountClientApp (Trace)] - Roact.mount to ExperienceChat - Client - Logger:48
11:23:50.213 [CoreScripts/FacialAnimationStreaming] - [updateWithServiceState] state: 0 - Client - Logger:15
11:23:50.241 [ReportAbuseMenu] - ReportAbuseMenu: Failed to init VoiceChatServiceManager - Client - Logger:15
11:23:50.546 [TrustAndSafetyIXPManager] - RA Optional Screenshot enabled? Both: false, Exp: true, Avatar: false. Invoking 1 callbacks. - Client - Logger:15
11:23:50.586 [ExpChat/BubbleChatApp (Debug)] - Initializing - Client - Logger:48
11:23:50.594 [ExpChat/ChatInputBar (Trace)] - Mounted - Client - Logger:48
11:23:50.791 [ExpChat/mountClientApp (Debug)] - Player removed: SharpSerious 2258246 - Client - Logger:48
11:23:51.111 ▶ [ExpChat/Analytics (Debug)] - Event: ChannelLeft (x2) - Studio
By playing any game or testing in Studio, I’m receiving this output on the client