I concur with what's been mentioned already, but would add that many employers won't even accommodate part-time study. Unless you've been with the same employer for many years or else going for a master's degree that really enhances your work, employers typically aren't that keen on people going part-time. Some companies let employees take a sabbatical after a few years of service (e.g. 4, 5 years) and full-time study for a year is then an option. People are allowed by law to request flexible working after 6 months into a job, including move to part-time hours, but a lot of employers refuse those requests because of cost issues, inconvenience, etc.
Many funding opportunities are only for full-time rather than part-time courses - that is the case for my course and was the final reason why I didn't opt for part-time.
In 2020 I found myself between jobs due to impacts of the pandemic. If someone is thinking about doing part-time work to help fund study over 2 years, I'd say that the economic conditions are very challenging and so it's tricky to plan the job situation.
I've been very fortunate to do a fixed-term contract with a new employer this year, so I have a few big projects to wrap up before I start full-time study this October, with the possibility of coming back afterwards. With almost every other job opportunity I'd be committing to permanent role, but companies aren't that pleased if you leave within a year (and also think about the optics with prospective employers).
With all that considered I'd say go for part-time if: i) you've been working with employer for a while who would allow a move to part-time; ii) you have major commitments that could be difficult to fit in with full-time course, e.g. children, care, etc.
Otherwise I think it's great to go 'all in' on full-time route.