We sold many 1010s, 350s, and 450s with the so-called "23 GPM" pumps and dozer setups. It was an option if the machine was going to have extra hydraulic attachments like a rear ripper, remotes, etc. The big pumps worked fine with the dozers. Only issue was blowing off the return hydraulic filters when revved up with cold oil. But that happens with the smaller pumps also. "GPM" for a pump has no meaning unless expressed at a given RPM. Deere used 1.3 cubic-inch-per-rev pumps as standard on many dozers and 2.3 cubic-inch-per-rev pumps as optional pumps on dozers and standard on loaders. Also some bigger pumps up to 2.6 cubic inches.
A 1.3 cubic-inch Cessna flows 17.9 GPM @ 2500 RPM and 9.7 GPM @ 1800 RPM.
A 2.3 cubic-inch Cessna flows 25.5 GPM @ 2500 RPM and 16.3 GPM @ 1800 RPM.
A 2.6 cubic-inch Cessna flows 26 GPM @ 2500 RPM and 18.3 GPM @ 1800 RPM.
A 2.85 cubic-inch Cessna flows 28 GPM @ 2500 RPM and 20 GPM @ 1800 RPM.