Lost Windows partition on mac os catalina
I have a 2015 MBP running catalina 10.15.7 . The hard drive is partitioned to run windows for work, but i no longer need that. I'd prefer to have all the space for just Mac as the computer isn't working right. I'd like to reinstall mac os but I can't find the windows partition (although I can see half the storage is gone). In disk utility I can see that there are multiple volumes but can only see the mac volume. I've done enough googling to see that i should run diskutil list in terminal, but I don't know what to do next. any help is much appreciated:
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 500.1 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +500.1 GB disk1
Physical Store disk0s2
1: APFS Volume Macintosh HD - Data 253.4 GB disk1s1
2: APFS Volume Preboot 81.7 MB disk1s2
3: APFS Volume Recovery 529.0 MB disk1s3
4: APFS Volume VM 1.1 GB disk1s4
5: APFS Volume Macintosh HD 11.3 GB disk1s5
MacBook Pro 13″, 10.15