just depends on the runtime. idk how big the runtimes are for those platforms but if it all fits under 4MB then its good.
Viewing post in Can I compile Pico-8 or Tic-80 to exe file?
4MB uncompressed, if you use any compression, it has to be taken care of by your program ITSELF.
No, it isn't bad, the final rating takes size AND ingenuity into account, so use your space wisely.
Also consider joining the discord server, you'll likely get more help and discussion there. https://discord.gg/ge3YuJheBY