I think everyone has their own individual comfort level and acceptable balance.
I’ve had a 16.5mi 1000ft each way cycling commute, 4 days a week, 2 weeks in 3 - so about 50% in the 4 years before Covid. I’d either work from home or drive the other days.
I started at about 17stone using a eBike for 6 months, each way took a bit over an hour. After 6 months and considerably lighter I switched to a normal bike and added 5 mins to the journey in, and about 10 mins to the journey home - am more tired on the way back, particularly towards the end of the week.
On reflection and overall, it is just as comfortable for me (/uncomfortable!) doing the journey with either bike. Both have their pros and cons. I’d prefer a journey time of about 40mins a each way, as that’s what I’ve now found to be my preferred comfortable limit.
I like the predictable journey times with the eBike and knowing I have help with headwinds and if tired. I dislike the added weight, marginal phaff and added complexity.
I like the greater fitness improvement felt with a standard bike, simplicity, reduced weight and better handling. I dislike journey times increasing as I tire or in a headwind.
Back to knowing your own comfort level and priorities… will you be comfortable with a ~1.5hr each way cycling commute, ebike or otherwise? How often will it be?
The temptation might be to get an eBrompton for ultimate flexibility, but with compromises. I’m a Brompton fan but the full commute on a B wouldn’t be for me every day.
You might only find out by trying it, but establishing your comfort level is key.