Why would you import that seed into ledger HW? It doesn’t make sense.
Umbrel is using LND AEZEED Bitcoin wallet. That means is NOT compatible with BIP39 recovery type.
See more about wallet type seed and derivation path here https://walletsrecovery.org/
Umbrel node wallet should NOT be used in parallel in another app! Could be imported into Bluewallet, Zap (desktop), Blixt, Sparrow, Electrum or other LND app, but ONLY in case of emergency, when you want to recover your dead umbrel node (see here the recovery guide).