I agree, there are a lot of attractions that Singapore has to offer. Botanic Gardens, Gardens by the Bay, the treetops walk at MacPherson, the Ridges walk at Henderson, Pulau Ubin, the southern Islands, Sentosa, MBS, Sembawang Hot Springs, even Jewel at Changi, the back lanes and alleys along Arab Street, Lorong Haji, Prinsep Street ... so on and so forth.
But, unfortunately, you cannot escape or avoid the fact that Singapore is a very small island, and it's geared up for money, work, success ... and all the rest is secondary. Good place to make some money, carve out a career and be successful professionally and financially, but what are you going to do after that?
In your case, you've already mapped out your eventual return to Malaysia.
Many Singaporeans are jealous of the fact that Malaysians have that "backdoor" to retirement where the perception is the houses are bigger, the land is bigger, the air is fresher.
SG is small. Not being an outdoorsy person, I'm left with going shopping or perhaps drive to Ikea Tampines.
Talking about returning to MY, they changed rule again for MM2H. Doubt it matters to you or those of us not intending to retire back in MY.