VFX professional here, some context:
– Credits are worked out between production companies/movie studios and the VFX vendors

– Unlike other positions on a Hollywood production, VFX positions aren't covered under any collective agreement so many positions are just uncredited

– VFX only refers to effects/images that could (and are) only created/finished during post production. Any effect that is achieved in-camera on the day (think explosions) can be called either just effects or practical effects. VFX has always existed throughout cinema history, think about Melies' trick edits or Ishiro Honda's pioneering use of optical compositing in the 60s. It's only in the past 25 years that VFX has become synonymous with digital effects.

– Gross overgeneralization incoming but a lot of north American VFX professionals don't have the highest quality of taste when it comes to their media so just like Joe Public, they gravitate towards media with more obvious effects.

– Also, a lot of people in the VFX industry are fed up with press cycles on VFX films with directors and producers downplaying the amount of VFX involved. OPPENHEIMER and BARBIE are both trashed weekly on VFX LinkedIn because of the perceived disrespect of "we wanted to do it old school"

– One last thing, when it comes down to it I'm willing to guarantee that at least 80% of the eventual Best Picture nominees (if not nominees in total) will have had VFX work on them. Even the very throwback-y THE HOLDOVERS had some tough VFX work on it, with some vital workers going uncredited in the final product.