I would recommend you keep the larger drive as it. If possible put ssd on another port say M.2 or dvd solt.
Or
Using extension casing box, insert newssd boot the laptop with hdd, once booted up, then clone the os to ssd.
Then remove hdd , replace ssd.
In my vivobook laptop, I am using two hdd 2tb , 1tb. And one ssd 250gb m.2. All are internally connected
Intel i5 7200U_ Nvidia 940MX _Windows_11_Enterprise_64bit_22H2_buildno_22621.754