Can I publish multiple SPF records?

No. Merge all services into one v=spf1 record.

What if I use Google Workspace?

Include _spf.google.com if Google Workspace sends mail for the domain.

Yes. Add ip4 or ip6 mechanisms for fixed sending infrastructure you control.

GEN tool

Build one SPF record for your domain and avoid duplicate v=spf1 TXT records.

SenderDNSReceiver

GEN

Enter a domain to run the check.

Publish the TXT value at the root domain unless your provider instructs otherwise. Remove old duplicate SPF records before adding the merged version.

Use ~all while testing. Move to -all when every legitimate sender is included and monitored.