The Sony website does not have drivers or manuals for the laptop Sony Vaio Fit SVF152A29M; it does not exist there.
I contacted Sony support because the Windows 8 it came with is end-of-life now, and we would need to upgrade to Windows 10. Upgrading to Win10 would mean the laptop needs more RAM and a SSD, and for that we need the specification. They told me:
SVF152A29M is the same as model SVF1521Q6EW
You can find all information here: https://www.sony.de/electronics/support/laptop-pc-svf-series/svf1521q6e
The VAIO production has been stopped in 2014. Therefore we do not offer any drivers or software for Windows 10/11.
RAM: max. 8 GB / typ PC3L-12800 DDR3L SDRAM
Harddisk: Serial ATA
Time to switch to Linux.