I think I’m correct in saying that our usually renal threshold for glucose is around 10mmol, but Forxiga (dapaglifozin) and empaglifozin reduce this to around 7mmol. So if you can get your BG to below 7 by cutting carbs, the problem should ease. If you struggle to do that, and the thrush is intolerable, it may be time to discuss with your GP about trying something different.
I’ve been on Forxiga since 2014. It’s only caused me problems with thrush when my diabetes became poorly controlled during lockdown (HbA1c up to 64, representing an average BG of around 10mmol, at the time. My BGs currently average 6.1mmol, and I no longer have any issues)