No, your game isn't bugged: for the first time in almost six and a half years, there is no Giovanni Special Research in Pokémon Go.
Usually, when a Team Go Rocket event rolls around in Pokémon Go, new Special Research which involves fighting Grunts, Leaders, and eventually Giovanni unlocks. This started back in November 2019 with the introduction of 'Looming in the Shadows', and has been a mainstay of the game since, with another chance to encounter Giovanni (and his new highlighted legendary shadow Pokémon) every few months.
As of this week and 2026's 'Steeled Resolve' event, this has changed. The 'Taken Over' portion of the event has now begun, ushering in line-up changes for Team Go Leaders and Giovanni as usual, but there's no new Special Research that rewards a Super Rocket Radar required to encounter Giovanni.
Instead, players have to complete the 'Steeled Resolve' Go Pass to unlock one. As before, a Super Rocket Radar can be obtained for free, but there's a catch: you have to reach the final rank of the Basic Go Pass before the event ends on Monday, 4th May at 8pm local time to do so. Another change is that paying players can unlock another Super Rocket Radar right away if they opt to purchase the Deluxe track of the Go Pass.
In summary, when a 'Taken Over' event takes place, there's now two opportunities to get a Super Rocket Radar - one free, one paid - and you no longer have to complete a questline to get either. This also applies to new or lapsed players, by the way: we verified that progressing past the introductionary 'A Troubling Situation' Special Research (which usually leads players to the most recent Giovanni quest, currently 'Precious Pals: Taken Over') on an account yet to complete it as of this morning (30th April) no longer unlocks any new Special Research, suggesting the Giovanni questlines really are gone for good.
What does this mean in practice?
You could the argue the Go Pass approach is a more straightforward way of encountering Giovanni. A quirk of the Giovanni Special Research line is you had to complete the previous one to unlock the next, and when you do, you have to repeat largely the same steps each time - defeating Grunts, purifying shadow Pokémon, defeating all three Leaders - before you can get a Super Rocket Radar and meet Giovanni again.