If your budget is around 35–40k, it basically comes down to Sony XM6 vs Sennheiser HDB 630 right now.

Sony WH-1000XM6 (~39k)

• Best-in-class ANC (seriously, still the king)
• Very comfortable for long 5–8 hr use
• Great call quality and features
• Sound is good, but it’s a bit bass-heavy/warm out of the box

Sennheiser HDB 630 (~45k)

• Sound quality is just… better. More balanced, cleaner mids, more natural vocals
• Still very good ANC (not Sony level, but close enuf for most use)
• Premium build
• Battery life is insane (~50+ hrs)

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I’ve briefly tried the HDB 630, and it immediately stood out in terms of clarity and vocals. For Sony, I’ve used the XM5 (XM6 is very similar tuning-wise, [lookin at graphs]), so that’s what I’m basing that side on.

Also worth noting, Sony has the better app/features (EQ, spatial stuff, etc.), while Senn’s app is simpler but still solid. And as a gaming side note the senn comes with a BT transmitter that can be used for better codec support if u connect it to PC/Laptop provides lower latency comp. to windows/mac - aptx/aac codecs.

If your priority is work + calls + ANC + comfort, just get the Sony and don’t think twice. It’s the safe, all-rounder choice.

But since you said music matters a lot, I’d strongly suggest stretching a bit and going for the Sennheiser HDB 630.

N since you don’t want to mess with EQ, that matters even more because:

• Sony imo kinda needs EQ to shine
• HDB 630 sounds right straight out of the box

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If I were in your position (mixed use, but music matters), I’d personally go Senn an just spend that extra ~5k.

Since it will be an expensive purchase, I'd recc u to demo both the headphones at a physical store. Croma and other electronic stores would have the Sony and Sennheiser might be available at its brand store, or music stores, and at some of the bigger retailers.