None of my desk jobs have ever allowed a personal computer because of the risk of data leaking.
Was cautioned about an employee at our competitor who used a personal device, it was stolen and it had client data on it including some of their IP, and when that client took legal action, because the employee acted out of company policy they were on the hook for it.
Or if you use your own machine, you still have to collaborate in ways that require Office for one reason or another.
None of my desk jobs have ever allowed a personal computer because of the risk of data leaking.
Was cautioned about an employee at our competitor who used a personal device, it was stolen and it had client data on it including some of their IP, and when that client took legal action, because the employee acted out of company policy they were on the hook for it.