I got my last employer to agree to change the IP terms. It was a typo in their document nobody caught, that asserted ownership on everything. They were only too happy to fix it so it only applied to work done for them. I did have an industry specific non-compete as well, but it's a fairly narrow segment, so I had no problem signing.

My current employment agreement specifically states I can run whatever enterprise I want outside of work so long as it doesn't interfere with my duties (and presumably their business).

My last two companies have modified their language.

Yeah, I request changes from both clients and W2 jobs and get most of what I want as well.

I can confirm that. Two of the top 5 US tech companies told me to sign it as-is or GTFO.

Name and shame :)

Counter anecdata: Many employers are happily willing to provide such carve-outs for ownership of side projects done at home on the employee’s own time and equipment.

This is interesting. Has this been your personal experience? If so, to what the extent?

At my first ever job, where I was among the first developers after the founders, they got such standard boilerplate template.

I asked them to remove that line and some others, and they did without discussion or trying to pressure me into signing.

They didn't actually notice the line being there when they downloaded it from the internet and it was consequently removed for future contracts.

I know people who have had this part of their agreement removed

I also got the “sign it unmodified or GTFO.”

This is not my experience, including early in my career when I worked for FedEx.