I'm pretty sure it's possible. Before my own full flare tho, the fibro-suspicion (my GPs and me) was too vague and my wife's rheum-suspicion
would've suggested a slow progression - no one saw the crashing coming this severely. So my story won't help to predict. Maybe you belong to those who have a milder form that won't get worse and that you can manage to cope with. Maybe my severe form would have come however I'd looked ahead. but I also remember my wife warning me and having long wanted me to go to a rheumatologist and I remember sitting at work, freezing and paining, alone, after talks, working despite the pain, with no idea what was happening, and telling everyone I'd be trying to keep on for a few more weeks till there was a fitting break in our work flow. Maybe it was that that smashed me to the floor, from a 48-hour week to zero for 10 months, and absolutely no chance of ever getting back up to even 20 hours (unless I could do home office).
And we have generally been saying: fibro isn't a progressive illness. But is that still the case if we continually overdo it, week for week, day for day? I've been arguing that it may progress then, yes.
If you could truly say you are OK at work, just not capable of working well in the eighth hour, but not that much pain, no overdoing it, no need for a day or two's rest, then I'd say: I know of quite a lot of fibromites who manage that without crashing.
It depends on the details of what you mean by "easier on my mind, body, and for keeping up with work projects", I spose.