I bought the fully loaded i9, 5700XT w/ 2TB storage in 2020 adding 64gb Ram from OWC right before M1 was released, and I’m still glad I did.
I also own a 2022 M1 Max 16” with 64gb memory and 2TB.
Both work great.
The M1 MacBook is snappier but not enough of a big, big difference though between the two.
I use my iMac all the time for everything music & content.
macOS Catalina, Monterey, Ventura & Sonoma.
I boot off 4TB external drives (thunderbolt4 enclosures). Great performance.
Runs just as fast as the internal.
I love the 5K display.
I agree with you about getting these 2020 27” iMacs. They are still great.
Heck, I still use a 2013 21.5” iMac only because by switching out the HHD with an SSD (with a kit from OWC) brought it back to life.
No, OpenCoreLegacyPatcher yet.
But It still works great for my music.
The only thing that bothers me is this,
Can I upgrade the internal storage on my 2020 27” iMac?
No, right?
I thought they were soldered in also now like the M-Mac’s?
Even the 2019’s. Right?
I wish I put in an internal 4TB or 8 at purchase but using the Thunderbolt4 external enclosure’s are just fine.