Culture fit is vital—more important than total compensation in my opinion. A company like this sounds like they have an established way of working and some set expectations for the role. Don't expect them to change or bend anytime soon. If you don't feel comfortable working within the expectations and culture there, then it's better to find somewhere that fits your style better. You'll be much happier in the long run. On the plus side, you have this job right now, so you can take your time finding something great!

I've been in the same situation many times. I'm going through something similar now. It's super annoying. But I do it because the compensation is solid. I can get past the culture fit piece, personally. It depends on what you're looking for. I ended up using Google Drive and uploading to Sharepoint. And I connected my Outlook to Gmail. And I also continued to use my own computer. It's probably the worst advice to give. Ha! But it's real.

One thing I’d pick out here is your word choice: twice using “refuse to.” You might be able to get used to using Microsoft tools and computers but if you’re in a company that actively refuses to help you do your best work, then this is likely only the start of your problems. They sound like a company that says “no” first and that can be a really dispiriting environment, especially if you’re interested in pushing things forward or evolving yourself or experimenting.

I was in a similar situation once. I'd look for a new job, personally (assuming you can find one that pays as much). That stuff is impossible to change. Don't feel guilty 🤷

I’m now in a very similar situation after the company I joined got acquired by a larger company—both have been the largest companies I’ve ever been part of. I also have not enjoyed the move to Microsoft, and I honestly go back and forth on whether I stay or leave. I’d advise you to find something else that’s a great fit, which may take longer than you’d like. But try to learn and get as much out of this experience as you can while you’re there. There are probably some processes, systems, or collaboration with other teams that can benefit you in future roles/interviewing.