According to Connecting to your own Bitcoin node - Bisq Wiki your bitcoin core full node configuration not only requires the peerbloomfilters=1 settings, but also it has to run in a NOT pruned mode.
If you want to connect to a your full node from a different computer running in the same local network, you may consider using a SSH tunnel to connect to it:
replacing username with the username on the local full node and 192.168.0.21 with the actual ip address of your full node.
Bisq will then happily swallow the decoy that there is a locally running full node on the same machine where in fact the communication will be forwarded to your full node in the background.