I think part of the problem is rose-colored glasses. macOS definitely has bugs today. The question is, is it actually any worse than it was 12 years ago (in what was probably the Mac's heyday in terms of attention from Apple)? I'm not sure it is.
That is similar to Catalina with its too many new untested features.
Then they fixed the bugs in Snow Leopard.
The severity of Catalina's bugs are much greater than Snow Leopard. For example, there is now simultaneously a Mail deletion bug and iCloud bug to ruin your data across all machines.
Catalina needs a Snow Catalina.
This Macbook Pro has an actual keyboard, magsafe power port, continues to function great, works great with external monitors (HDMI port). Other than feeling squeezed for RAM and that the CPU isn't the fastest anymore, it was well worth the purchase price.
Since then the hardware has gotten worse, and with MacOS Catalina, the software is worse as well (the removal of 32-bit support affects my workflow; I can't use MacOS Catalina).
The sad thing is, nothing else has really gotten better. I'm leaning toward side-grading to Linux, but there's risk involved in buying a full-spec machine for Linux and perhaps finding it doesn't do everything I need it to do.