On first launch, it connects to multiple centralized servers before you have a chance to select your homeserver.
The issue was with the default client, in the default config.
Not sure if it's still happening, but it was concerning enough that it happened in the first place.
https://github.com/vector-im/element-web/issues/13942
https://github.com/vector-im/element-web/issues/12712
https://github.com/vector-im/element-web/issues/11655
https://github.com/vector-im/element-web/issues/11655#issuec...
It would also appear that it intends to maintain a Solarwinds-style remote code execution vulnerability on the machine on which it is installed:
https://github.com/vector-im/element-web/issues/11655#issuec...