I enjoyed that episode a lot, although it would have benefitted from its length being tightened up by ten minutes.

What do we think was the nature of the Romulan interference with Earth? And what time period is Sera, the Romulan agent from?

The DTI agent appears to use 29th century tech, which is several hundred years after the Romulan Empire’s supernovae-driven collapse but possibly around the time of the Romulan-Vulcan reunification of Ni’Var. Is she from that same time period?

Sera also shows Kirk a picture of what looks like a TOS-era Bird-of-Prey as part of her alien conspiracy photo deck. It has the round nacelles typical of the 23rd century, rather than those seen in ENT’s 22nd century designs, or some other design representing the 20th/21st century in which these attacks take place.

Is she a time agent from the 23rd century (with the appropriate Romulan ship in orbit)?

Is that her guessing who Kirk is, and planting the evidence he’s most likely to recognize? Or was that really a Romulan design from the 21st century?

Which leads to me wonder if the Romulans started interfering with Earth’s development only due to temporal war shenanigans, or had they been doing flybys for as long as the Vulcans?