There's all the usual "$APPLICATION is a memory hog" complaints, for one.
In the SWE world, dev servers are a luxury that you don't get in most companies, and most people use their laptops as workstations. Depending on your workflow, you might well have a bunch of VMs/containers running.
Even outside of SWE world, people have plenty of use for more than 8GiB of RAM. Large Photoshop documents with loads of layers, a DAW with a bazillion plugins and samples, anything involving 4k video are all workloads that would struggle running on such a small RAM allowance.
This depends on industry. Around here, working locally on laptop is a luxury, and most devs are required to treat their laptop like a thin client.
Of course, being developer laptops, they all come with 16 gigs of RAM. In contrast, the remote VMs where we do all of the actual work are limited to 4GiB unless we get manager and IT approval for more.