yeah, I hate it when the studios just put 100nits SDR into an HDR/DV container.
Basically, the only HDR in this TV show is the Netflix intro at 943nits and they didn't even bother doing the ending credits, it's just straight SDR text to HDR( blinding 10k nits) lol
About your conversion, I would have used the HDR webdl in Resolve but it looks like you went a bit too strong on the ''DARK'' setting. Personally I always reduce ''dark'' as much as I raise ''global'', otherwise, you introduce black crush.
example:
https://slow.pics/c/i0IXZHzW
for reference, this is MA Theater Camp SDR to HDR I did recently (dark -0.30 /global +0.30):
https://slow.pics/c/pDBOKphG