Last night there were some definite issues as well, particularly tell lag, and I was getting chain-tagged as spam in cross-server tells, which was exceptionally bizarre.
It has been going on since yesterday aye, and today it was worse, it is not isolated to individuals, numerous people in my guild and general chat are asking if others are getting it at the same time as myself and others in my discord are getting it. Its also particularly worse than normal hiccups, like it was said, 5-10 seconds where buttons are not usable, etc.