Nowadays, many home PCs (including mine) have 32 GB of memory and a 64-bit OS ...

-- from The 10**21 Problem (Part 2) (2014)

Agreed. Given the OP was "hoping to be able to go to at least 8GB" -- and given I had 32 GB of memory on my home PC way back in 2014 (and I am definitely not a rich man :) -- the simplest and cheapest something else may be simply "buy more memory". Well, that seems attractive for a commercial company because the cost of PC hardware is dwarfed by the cost of people (and the cost/risk associated with making massive code changes to critical production systems).