I recently got back into photography after a decade break. Brought a nice mirrorless camera and a few good lenses (Sony A7iii, 24-105 f/4, 35mm f/1.8). I was truly blown away at the progress that has been made in handheld imaging. The difference between my old Cannon EOS 450d and my current equipment is immense. What has happened to the iPhone camera in the last 10 years has also happened to handheld cameras too, but…
Great camera. Don't discount the 3rd party E-mount lens makers, such as Samyang. If you are unsure what to get next, I suggest looking at this list of every E-mount full-frame lens: https://briansmith.com/sony-a7-a7r-a7s-lens-guide/
https://phillipreeve.net/blog/manual-lenses-sony-a7/
Plus, a comprehensive list from the same folks for all the E mount lenses:
https://phillipreeve.net/blog/fe-lenses-sony-comprehensive-i...