As of 1.17.2, there is no way to farm renewable copper with decent rates on bedrock. Converted drowned farms from a spawner, zombies filtered from a generic mob farm, and ocean drowned farms, all give abysmal rates for copper. In Java edition, players are able to use the zombie reinforcement mechanic, which allows them to get decent rates for converting drowned. With Bedrock missing this feature, there is a significant difference in how bedrock players are able to farm copper.
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However, this issue is Invalid.
You reported a parity issue. We are only tracking parity issues that meet the following criteria on this bug tracker:
The feature affected by the parity issue is present in both Bedrock Edition and Java Edition in the latest release or development version
The feature behaves differently in one edition than in the other
The parity issue was introduced in Buzzy Bees (Bedrock Edition 1.14 / Java Edition 1.15) or later and was not present before
Any parity issue that does not meet these criteria are not tracked on the bug tracker and should instead be reported on the Feedback website.
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